List of Publications:
(109) Babu, S. A.*; Kaur, R.; Singh, H.; Kumar, A.
Title: RECENT DEVELOPMENTS IN C−H FUNCTIONALIZATION OF CARBAZOLES
TARGETS IN HETEROCYCLIC SYSTEMS - VOLUME 27 (2023) (Eds. Orazio A. Attanasi, Prof. Bartolo Gabriele, Domenico Spinelli), DOI: http://dx.medra.org/10.17374/targets.2024.27.378
(invited review/account)
(108) Dalal, A.; Bodak, S.; Babu, S. A.*
Title: Picolinamide-assisted ortho-C-H functionalization of pyrenylglycine derivatives using aryl iodides
Org. Biomol. Chem. 2024, https://pubs.rsc.org/en/content/articlelanding/2024/ob/d3ob01731a
(107) Babu, S. A.*; Dalal, A.; Bodak, S.
Title: Recent Advances in C–H Functionalization of Pyrenes
Chemistry 2023, 5, 2713, https://doi.org/10.3390/chemistry5040175
(Invited article. This article belongs to the Special Issue Catalytic Organic Synthesis—a Special Issue in Honor of Professor Masahiro Miura)
(106) Dalal, A.; Babu, S. A.*; Banga, S.
Title: Assembling of Polyaryls (Terphenyls, Tetraphenyls, Pentaphenyls and Hexaphenyls) via The Pd(II)-catalyzed C-H Arylation of Biaryl Carboxamides with Iodobiaryls
Asian. J. Org. Chem. 2023, https://onlinelibrary.wiley.com/doi/10.1002/ajoc.202300508
(105) Narang, U.; Singh, P.; Babu, S. A.*
Title: Construction of β-Phenylalanine Derivatives via Pd-Catalyzed, C(sp2)-H (ortho) Functionalization
Eur. J. Org. Chem. 2023, https://doi.org/10.1002/ejoc.202300463
(104) Singh, P.; Babu, S. A.*
Title: Pd-Catalyzed Arylation and Benzylation of Tyrosine at the δ-C(sp2)-H and C(2) Positions: Expanding the Library of Unnatural Tyrosines
Eur. J. Org. Chem. 2023, https://doi.org/10.1002/ejoc.202300440
(103) Singh, P.; Babu, S. A.*
Title: Pd-catalyzed remote δ-C(sp2)-H functionalization in phenylalaninol: Expanding the library of phenylalaninols
Synthesis 2023, https://www.thieme-connect.com/products/ejournals/abstract/10.1055/a-2147-3518
(102) Kaur, R.; Singh, H.; Babu, S. A.*
Title: Pd(II)-catalyzed, directing group-aided C-H arylation, alkylation, benzylation and methoxylation of carbazole-3-carboxamides toward C2,C3,C4 functionalized carbazoles
Synthesis. 2023, DOI: 10.1055/a-2056-2363
(https://www.thieme-connect.com/products/ejournals/abstract/10.1055/a-2056-2363)
(Invited article for Special topic)
(101) Padmavathi, R.; Babu, S. A.*
Title: Pd(II)-catalyzed selective β-C-H functionalization of azobenzene carboxamides
Org. Biomol. Chem. 2023, http://xlink.rsc.org/?DOI=
Org. Biomol. Chem. 2023 (inside cover page): https://pubs.rsc.org/en/content/articlelanding/2023/ob/d3ob90049e
(100) Suwasia, S.; Venkataramani, S.;* Babu, S. A.*
Title: Pd(II)-catalyzed coupling of C–H bonds of carboxamides with iodoazobenzenes toward modified azobenzenes
Org. Biomol. Chem. 2023, https://doi.org/10.1039/D2OB02322A
(99) Saini, K.; Kumar, S.; Kaur, R.; Babu, S.A.; Saravanamurugan, S.*
Title: Accelerated H2 activation over Pt/M-ZrO2 for the reductive amination of levulinic acid esters under benign conditions
Catal. Sci. Technol. 2023, https://doi.org/10.1039/D2CY01550A
(98) Tomar, R.; Suwasia, S.; Roychoudhury, A.; Venkataramani, S.;* Babu, S. A.*
Title: Azobenzene-based unnatural amino acid scaffolds via Pd(II)-catalyzed C(sp3)-H arylation strategy
Chem. Commun. 2022, 58, 12967.
(97) Bisht, N.; Babu, S. A.*; Tomar, R.
Title: Utility of 4-amino-2,1,3-benzothiadiazole directing group in the Pd(II)-catalyzed arylation of γ-C-H bonds of carboxamides and β-C-H bonds of amino acid carboxamides
Asian J. Org. Chem. 2022, https://doi.org/10.1002/ajoc.202200589.
(96) Aggarwal, Y.; Padmavathi, R.; Singh, P.; Babu, S. A.*
Title: Pd(II)-Catalyzed, γ-C(sp2)-H Alkoxylation in α-Methylbenzylamine, Phenylglycinol, 3-Amino-3-Phenylpropanol Toward Enantiopure Aryl Alkyl Ethers
Asian J. Org. Chem. 2022, 11, e202200327.
(95) Tomar, R.; Kumar, A.; Dalal, A.; Bhattacharya, D.; Singh, P.; Babu, S. A.*
Title: Expanding the utility of inexpensive pyridine-N-oxide directing group for the site-selective sp2/sp3 γ-C-H and sp2 δ-C-H functionalization of carboxamides
Asian J. Org. Chem. 2022, 11, e202200311.
(selected as very important paper)
(94) Kaur, R.; Banga, S.; Babu, S. A.*
Title: Construction of carbazole unnatural amino acid scaffolds via Pd(II)-catalyzed C(sp3)-H functionalization
Org. Biomol. Chem. 2022, 20, 4391.
(93) Bisht, N.; Singh, P.; Babu, S. A.*
Title: Pd(II)-catalyzed, picolinamide-aided γ-(sp2)-C-H functionalization of racemic and enantiopure α-methylbenzylamine and phenylglycinol scaffolds
Synthesis 2022, 54, 4059.
(92) Babu, S. A.*; Aggarwal, Y.; Patel, P.; Tomar, R.
Title: Diastereoselective palladium-catalyzed functionalization of prochiral C(sp3)–H bonds of aliphatic and alicyclic compounds
Chem. Commun. 2022, 58, 2612.
(Invited, Feature Article, This article is part of the themed collection: Functionalization of unreactive C-H bonds).
(91) Tomar, R.; Bhattacharya, D.; Babu, S. A.*
Title: Direct lactamization of β-arylated δ-aminopentanoic acid carboxamides: En route to 4-aryl- 2-piperidones, piperidines, antituberculosis molecule Q203 (Telacebec) and its analogues
Asian Journal of Organic Chemistry 2022, 11, e202100736.
(90) Babu, S. A.*; Padmavathi, R.; Aggarwal, Y.; Kaur, R.; Suwasia, S.
Book Chapter Title: Pd-catalyzed C(sp3)-H activation by native directing groups.
Hand book of C-H functionalization (Ed. D. Maiti).
https://doi.org/10.1002/9783527834242.chf0006
(invited book chapter)
(89) Saini, K.; Kumar, S.; Li, H.; Babu, S. A.; Saravanamurugan, S.
Title: Advances in the Catalytic Reductive Amination of Furfural to Furfural Amine: The Momentous Role of Active Metal Sites
ChemSusChem. 2022, 15, e202200107.
(88) Banga, S.; Kaur, R.; Babu, S. A.*
Title: Construction of Racemic (DL) and Enantiopure (D and L) Biaryl Unnatural Amino Acid Derivatives via The Pd(II)-Catalyzed Arylation of Unactivated sp3 C-H Bonds
Eur. J. Org. Chem. 2021, 2021, 3641-3656.
(87) Dalal, A.; Babu, S. A.*
Title: Pd(II)-catalyzed directing group-aided C-H arylation and alkylation of pyrene core. Synthesis of C1,C2- and C1,C10-disubstituted pyrene motifs
Synthesis 2021, 53, 3307-3324.
(Invited article; published as a special topic article and as a contribution as part of the Special Topic Bond Activation – in Honor of Prof. Shinji Murai).
(86) Sankar, R.; Bhattacharya, D.; Babu, S. A.*
Title: Synthesis of 1‐naphthol‐based unsymmetrical triarylmethanes: Heck‐type desulfitative reaction of arylsulfonyl chlorides with tetralone‐derived chalcones
Asian Journal of Organic Chemistry 2021, 10, 576.
(85) Singh, P.; Babu, S. A.*; Aggarwal, Y.; Patel, P.
Title: Pd(II)‐catalyzed, picolinamide‐aided sp2 γ‐C‐H functionalization of phenylglycinol: Access to γ‐C‐H arylated, alkylated and halogenated phenylglycinol scaffolds
Asian Journal of Organic Chemistry 2021, 10, 180.
(84) Babu, S. A.*; Padmavathi, R.; Suwasia, S.; Dalal, A.; Bhattacharya, D.; Singh, P.; Tomar, R.
Title: Recent Developments on the Synthesis of Functionalized Carbohydrate/Sugar Derivatives Involving the Transition Metal-Catalyzed C-H Activation / C-H Functionalization
Studies in Natural Products Chemistry 2021, 71, 311 (https://doi.org/10.1016/B978-0-323-91095-8.00001-5).
(83) Reji, R.; Tripathi, N.P.; Rani, K.; Dalal, A.; Babu, S.A.; Sengupta, S.
Title: Structure-Property Correlation of C10-(H)-Arylated-N-(pyren-1-yl)-picolinamide Regioisomers towards Cu2+ and Fe3+ Sensing
ChemistrySelect 2021, 6, 12022.
(82) Bhattacharya, D.; Tomar, R.; Babu, S. A.*
Title: Conversion of 2,3-Dihydrobenzo[b][1,4]dioxine-2-Carboxamides to 3-Oxoquinolin-2(1H)-Ones via the
Ring-Opening and Formal 6-Endo-Trig Cyclization-Involved Heck Reactions
Asian Journal of Organic Chemistry 2020, 9, 829.
(81) Bisht, N.; Babu, S. A.*; Tomar, R.
Title: Pd(II)-Catalyzed, Bidentate Directing Group-aided Alkylation of sp3 γ-C−H Bonds:
Access to 3-Alkylated Thiophene/Furan and Benzothiophene/Benzofuran Motifs
Asian Journal of Organic Chemistry 2020, 9, 1225.
(80) Sudha, A. J. Aslam, N. A.; Sandhu, A.; Yasuda, M.; Baba, A.; Babu, S. A.*
Title: Synthesis of beta-cyanoalanine and enantiomerically enriched aspartate derivatives via the Zn- or
In-mediated nucleophilic addition to α-imino esters
Tetrahedron 2020, 76, 131217.
(79) Singh, P.; Dalal, A.; Babu, S. A.*
Title: Pd(II)-catalyzed sp3/sp2 γ- and δ-C-H functionalization of aryl amines using
5-methylisoxazole-3-carboxamide as directing group: en route to 5-methylisoxazole-3-carboxamide motifs
Asian Journal of Organic Chemistry 2019, 8, 877.
(78) Padmavathi, R.; Babu, S. A.*
Title:Pd(II)-Catalyzed 8-aminoquinoline-aided sp2 δ-C-H intramolecular amidation/annulation:
en route to phenanthridin-6(5H)-ones (tricyclic quinolones)
Asian Journal of Organic Chemistry 2019, 8, 899.
(77) Tomar, R.; Bhattacharya, D.; Babu, S. A.*
Title: Assembling of medium/long chain-based β-arylated unnatural amino acid derivatives via the Pd(II)-catalyzed
sp3 β-C-H arylation and a short route for rolipram-type derivatives
Tetrahedron 2019, 75, 2447.
(76) Shukla, D.; Babu, S. A.*
Title: Pd-Catalyzed Diastereoselective Intramolecular Amide α-C-H Arylation in Sterically Hindered
Monospirooxindole Motifs
Adv. Synth. Catal. 2019, 361, 2075.
(75) Dalal, A.; Singh, P.; Babu, S. A.*
Title: One-pot, solvent-free Pd(II)-catalyzed direct β-C-H arylation of carboxamides involving anhydrides
as substrates via in situ installation of directing group
Tetrahedron 2019, 75, 1246.
(74) Parella, R.; Babu, S. A.*
Title: Pd(II)-Catalyzed Arylation and Intramolecular Amidation of γ-C(sp3)-H Bonds: En Route To Arylheteroarylmethane and Pyrrolidone-Ring Annulated Furan/Thiophene Scaffolds
J. Org. Chem. 2017, 82, 7123.
(73) Parella, R.; Babu, S. A.*
Title: Pd(II)-Catalyzed, Picolinamide-Assisted, Z-Selective γ-Arylation of Allylamines to Construct Z-Cinnamylamines
J. Org. Chem. 2017, 82, 6550.
(72) Sankar, R.; Babu, S. A.*
Title: Construction of tertiary amides: Ni(II)-catalyzed N-arylation of secondary acyclic amides (2-picolinamides) with aryl halides
Asian J. Org. Chem. 2017, 6, 269.
(71) Naveen; Babu, S. A.*
Title: Exploitation of Intramolecular Glaser–Eglinton–Hay Macrocyclization for the Synthesis of New Classes of Optically Active Aza-Oxo-Thia Polyether Macrocycles from Amino Alcohol Building Blocks
Synlett 2017, 28, 253.
(70) Naveen; Rajkumar, V.; Babu, S. A.*; Gopalakrishnan, B.
Title: Pd(II)-Catalyzed Bidentate Directing Group-Aided Chemoselective Acetoxylation of Remote epsilon-C(sp2)-H Bonds in Heteroaryl-Aryl-Based Biaryl Systems
J. Org. Chem. 2016, 81, 12197.
(69) Reddy, C.; Bisht, N.; Parella, R.; Babu, S. A.*;
Title: 4-Amino-2,1,3-Benzothiadiazole (ABTD) as a Removable Bidentate Directing Group for the Pd(II)-Catalyzed Arylation/Oxygenation of sp2/sp3 beta-C–H Bonds of Carboxamides
J. Org. Chem. 2016, 81, 12143.
(68) Naveen; Babu, S. A.*;
Title: An entry into new classes of optically active aza-oxo polyether macrocycles via the ring closing metathesis-based macrocyclization
Tetrahedron Lett. 2016, 57, 5690.
(67) Naveen; Babu, S. A.*;
Title: EDC/DMAP-mediated direct condensation of dicarboxylic acids and diols: A concise synthesis of extra large polyether macrocyclic lactones and their X-ray structures
Tetrahedron Lett. 2016, 57, 5801.
(66) Gopalakrishnan, B.; Mohan, S.; Parella, R.; Babu, S. A.*;
Title: Diastereoselective Pd(II)-Catalyzed sp3 C−H Arylation Followed by Ring Opening of Cyclopropanecarboxamides: Construction of anti β‑Acyloxy Carboxamide Derivatives
J. Org. Chem. 2016, 81, 8988.
(65) Bisht, N.; Babu, S. A.*
Title: Synthesis of ortho-arylated/benzylated arylacetamide derivatives: Pd(OAc)2-catalyzed bidentate ligand-aided arylation and benzylation of the gamma-C-H bond of arylacetamides
Tetrahedron 2016, 72, 5886.
(64) Mohan, S.; Gopalakrishnan, B.; Babu, S. A.*
Title: Multicomponent reaction comprising one-pot installation of bidentate directing group and Pd(II)-catalyzed direct beta-arylation of C(sp3)-H bond of aliphatic and alicyclic carboxamides
Tetrahedron 2016, 72, 5853.
(63) Rajkumar, V.; Babu, S. A.;* Padmavathi, R.
Title: Regio- and diastereoselective construction of a new set of functionalized pyrrolidine, spiropyrrolidine and spiropyrrolizidine scaffolds appended with aryl- and heteroaryl moieties via the azomethine ylide cycloadditions
Tetrahedron 2016, 72, 5578.
(62) Reddy, C.; Babu, S. A.;* Padmavathi, R.
Title: The Barbier-Type Allylation/Lactamization Cascade Route to Isoindolinones and the Heck-Type Annulation Route to Isoindolo[2,1-a]quinolines
ChemistrySelect 2016, 1, 2952.
(61) Rajkumar, V.; Naveen; Babu, S. A.*
Title: Palladium(II)-Promoted Directing Group-Enabled Regioselective C-H Arylation of The C-3 Position of 2- or 3-(Aminoalkyl)-Thiophene and Furfurylamine Derivatives
ChemistrySelect 2016, 1, 1207.
(60) Parella, R.; Babu, S. A.*
Title: Pd(OAc)2/AgOAc-Catalytic System-Based Z Selective Directed β-Arylation of Acrylamide Systems and Stereoselective Construction of Z-Cinnamamide Scaffolds
J. Org. Chem. 2015, 80, 12379.
(59) Babu, S. A.;* Padmavathi, R.; Aslam, N. A.; Rajkumar, V.
Title: Recent Developments on the Synthesis and Applications of Natural Products-Inspired Spirooxindole Frameworks
Stud. Nat. Prod. Chem. 2015, 46, 227. (book chapter)
(58) Parella, R.; Babu, S. A.*
Title: Regio- and Stereoselective Pd-Catalyzed Direct Arylation of Unactivated sp3 C(3)-H Bonds of Tetrahydrofuran and 1,4-Benzodioxane Systems
J. Org. Chem. 2015, 80, 2339.
(57) Gopalakrishnan, B.; Babu, S. A.;* Padmavathi, R.
Title: Bidentate ligand 8-aminoquinoline-aided Pd-catalyzed diastereoselective β-arylation of the prochiral secondary sp3 C-H bonds of 2-phenylbutanamides and related aliphatic carboxamides
Tetrahedron 2015, 71, 8333.
(56) Reddy, C.; Babu, S. A.;*
Title: Zn-Mediated Allylation Followed by Lactonization of Dialkyl 2-(3-oxo-1,3-diarylpropyl)malonates: Construction of δ-Lactones with Multiple Stereocenters
Synlett 2015, 26, 2121.
(55) Naveen; Babu, S. A.;*
Title: Ring-Closing Metathesis Reaction-Based Synthesis of New Classes of Polyether Macrocyclic Systems
Tetrahedron 2015, 71, 7758.
(54) Naveen; Babu, S. A.;* Aslam, N. A.; Sandhu, A.; Singh, D. K.; Rana, A
Title: Direct Azidation of Allylic/Benzylic Alcohols and Ethers Followed by the Click Reaction: One-Pot Synthesis of 1,2,3-Triazoles and 1,2,3-Triazole Moiety Embedded Macrocycles
Tetrahedron 2015, 71, 7026.
(53) Padmavathi, R.; Sankar, R.; Gopalakrishnan, B.; Parella, R.; Babu, S. A.;*
Title: Pd(OAc)2/AgOAc Catalytic System-Based Bidentate Ligand-Directed
Regiocontrolled C-H Arylation and Alkylation of the C-3 Position of Thiophene-and Furan-2-Carboxamides
Eur. J. Org. Chem. 2015, 3727.
(52) Aslam, N. A.; Babu, S. A.;* Rani, S.; Mahajan, S.; Solanki, J.; Yasuda, M.; Baba, A.
Title: Construction of 3-Aminooxindoles with Adjacent Stereocenters: Stereocontrolled Addition of γ-Substituted Allylindiums to Isatin Ketimines
Eur. J. Org. Chem. 2015, 4168.
(51) Rajkumar, V.; Babu, S. A.*
Title: Regio- and Diastereoselective Cycloaddition of Azomethine Ylides with Benzylidenemalononitrile: Assembly of a New Set of Multisubstituted 4,4-Dicyanopyrrolidine 2-carboxylate and Nornicotine Scaffolds
Synlett 2014, 25, 2629.
(50) Reddy, C.; Babu, S. A.;* Aslam, N. A.
Title: Indium-assisted aluminium-based stereoselective allylation of prostereogenic α, α-disubstituted cycloalkanones and imine functionality
RSC Advances 2014, 4, 40199.
(49) Aslam, N. A.; Babu, S. A.*
Title: Direct Lactonization of α-Amino γ,δ-Unsaturated Carboxylic Acid Esters via Olefin Activation: Stereo- and Regioselective Production of Homoserine Lactone Scaffolds Having Contiguous Stereocenters
Tetrahedron 2014, 70, 6402.
(48) Naveen; Aslam, N. A.; Babu, S. A.;* Singh, D. K.; Rana, A.
Title: Magnetically Separable Nano Fe3O4-Catalyzed Direct Azidation of Allylic and Benzylic Alcohols Followed by Copper-Catalyzed Click Reaction
Synlett 2014, 25, 2201.
(47) Parella, R.; Babu, S. A.*
Title: Pd-Catalyzed Double Activation and Arylation of 2° and 3° C(sp3)-H Bonds of Norbornane System; Formation of C-C Bond at the Bridgehead Carbon and Bridgehead Quaternary Stereocenter
Synlett 2014, 25, 1395.
(46) Naveen; Babu, S. A.;* Kaur, G.; Aslam, N. A.; Karanam, M.
Title: Glaser-Eglinton-Hay sp-sp coupling and macrocyclization: construction of a new class of polyether macrocycles having a 1,3-diyne unit
RSC Advances 2014, 4, 18904.
(45) Kumar, A.; Parella, R.; Babu, S. A.*
Title: Magnetic Nano Fe3O4-Catalyzed Solvent-Free Stereo- and Regioselective Aminolysis of Epoxides by Amines and A Green Method for the Synthesis of β-Amino Alcohols
Synlett 2014, 25, 835.
(44) Babu, S. A.;* Anand, R.V.; * Ramasastry, S. S. V. *
Title: Cinchona Alkaloid-Catalyzed Stereoselective Carbon-Carbon Bond Forming Reactions
Recent Patents Catal. 2013, 2, 47.
(43) Parella, R.; Gopalakrishnan, B.; Babu, S. A.*
Title: Direct Bis-Arylation of Cyclobutanecarboxamide via Double C−H Activation: An Auxiliary-Aided Diastereoselective Pd-Catalyzed Access to Trisubstituted Cyclobutane Scaffolds Having Three Contiguous Stereocenters and an All-cis Stereochemistry
J. Org. Chem. 2013, 78, 11911.
(42) V. Rajkumar; Babu, S. A.*
Title: Diastereoselective construction of a new class of nicotine analogues having contiguous stereocenters via 1,3- dipolar cycloaddition of azomethine ylides
(Invited Article for the Special Issue: 'Complex Chemical Systems')
Indian J. Chem. Sec. A. 2013, 52A, 1113.
(41) Aslam, N. A.; Babu, S. A.;* Arya, J. S.; Yasuda, M.; Baba, A.
Title: Chelation-controlled diastereoselective construction of N-aryl-,N-acyl/tosylhydrazono beta-substituted aspartate derivatives via Barbier-type reaction
Tetrahedron 2013, 69, 6598.
(40) Reddy, C.; Babu, S. A.;* Aslam, N. A.; Rajkumar, V.
Title: Construction of Functionalized Carbocycles Having Contiguous Tertiary Carbinol and All-Carbon Stereogenic Centers
Eur. J. Org. Chem. 2013, 2362.
(39) Naveen; Parella, R; Babu, S. A.*
Title: RCM strategy-based entry into new crown ether/polyether macrocyclic systems derived from hydroxy benzaldehydes
Tetrahedron Lett. 2013, 54, 2255.
(38) Parella, R.; Gopalakrishnan, B.; Babu, S. A.*
Title: Auxiliary-Enabled Pd-Catalyzed Direct Arylation of Methylene C(sp3)-H Bond of Cyclopropanes: Highly Diastereoselective Assembling of Di- and Trisubstituted Cyclopropanecarboxamides
Org Lett. 2013, 15, 3238.
(37) Parella, R.; Naveen; Kumar, A.; Babu, S. A.*
Title: Catalytic Friedel–Crafts Acylation: Magnetic Nanopowder CuFe2O4 as an Efficient and Magnetically Separable Catalyst
Tetrahedron Lett. 2013, 54, 1738.
(36) Parella, R.; Naveen; Babu, S. A.*
Title: Magnetic Nano Fe3O4 and CuFe2O4 as Heterogeneous Catalysts: A Green Method for the Stereo- and Regioselective Reactions of Epoxides with Indoles/pyrroles
Catal. Commun. 2012, 29, 118.
(35) Aslam, N. A.; Rajkumar, V.; Reddy, C.; Yasuda, M.; Baba, A.; Babu, S. A.*
Title: Indium-Mediated Addition of γ-Substituted Allylic Halides to N-Aryl α-Imino Esters: Diastereoselective Production of β,β′-Disubstituted α-Amino Acid Derivatives with Two Contiguous Stereocenters
Eur. J. Org. Chem. 2012, 4395.
(34) Rajkumar, V.; Aslam, N. A.; Reddy, C.; Babu, S. A.*
Title: Unactivated Norbornenes in [3+2] Cycloadditions: Remarkably Stereo-controlled Entry into Norbornane-Fused Spirooxindolopyrrolidines, Spiro-1,3-indandionolylpyrrolidines, and Spirooxindolopyrrolizidines
Synlett 2012, 23, 549.
(33) Yasuda, M.; Tsuruwa, K.; Azuma, T.; Babu, S. A.; Baba, A.*
Title: Stereoselective Synthesis of Vicinal Diols by the Stannous Chloride-Mediated Reaction of Unprotected Hydroxyallylic Stannane with Carbonyl Compounds
Tetrahedron 2009, 65, 9569.
(32) Yasuda, M.; Azuma, T.; Tsuruwa, K.; Babu, S. A.; Baba, A.*
Title: Highly Stereoselective Synthesis of Vicinal Diols by Stannous Chloride-Mediated Addition of Hydroxyallylic Stannanes to Aldehydes
50th Anniversary Special Issue
Tetrahedron Lett. 2009, 50, 3209.
(31) Nishimoto, Y.; Babu, S. A.; Yasuda, M.; Baba, A.*
Title: Esters as Acylating Reagent in Friedel-Crafts Reaction; Indium Tribromide-Catalyzed Acylation of Arenes Using Dimethylchlorosilane
J. Org. Chem. 2008, 73, 9465.
(30) Babu, S. A.; Yasuda, M.; Tsukahara, Y.; Yamauchi, T.; Wada, Y.; Baba, A.*
Title: Microwave-Irradiated Transition Metal Catalysis: Rapid and Efficient Dehydrative C-C Coupling of Alcohols with Active Methylenes
Synthesis 2008, 1717.
(29) Babu, S. A.; Yasuda, M.; Baba, A.*
Title: Diastereoselective Production of Homoallylic Alcohols Bearing Quaternary Centers from gamma-Substituted Allylic Indiums and Ketones
J. Org. Chem. 2007, 72, 10264.
(28) Babu, S. A.; Yasuda, M.; Baba, A.*
Title: In(III)-Mediated Chemoselective Dehydrogenative Interaction of ClMe2SiH with Carboxylic Acids: Direct Chemo- and Regioselective Friedel-Crafts Acylation of Aromatic Ethers
Org. Lett. 2007, 9, 405.
(27) Babu, S. A.; Yasuda, M.; Okabe, Y.; Shibata, I.; Baba, A.*
Title: High Chelation-Control of Three Contiguous Stereogenic Centers in the Reformatsky Reactions of Indium Enolates with alpha-Hydroxy Ketones: Unexpected Stereochemistry of Lactone Formation
Org. Lett. 2006, 7, 3029.
(26) Babu, S. A.; Yasuda, M.; Shibata, I.; Baba, A.*
Title: In- or In(I)-Employed Tailoring of the Stereogenic Centers in the Reformatsky-Type Reactions of Simple Ketones, alpha-Alkoxy Ketones and beta-Keto Esters
J. Org. Chem. 2005, 70, 10408.
(25) Babu, S. A.; Yasuda, M.; Shibata, I.; Baba, A.*
Title: In- or In(I)-Employed Diastereoselective Reformatsky-Type Reactions with Ketones: 1H-NMR Investigations on the Active Species
Org. Lett. 2004, 5, 4475.
(24) Babu, S. A.; Yasuda, M.; Shibata, I.; Baba, A.*
Title: Indium-Employed One-Pot Sequential Double Nucleophilic Attack on a Symmetrical Dicarboxaldehyde
Synlett 2004, 1223.
(23) Muthusamy, S.*; Krishnamurthy, J.; Babu, S. A.; Suresh, E.
Title: Anomalous Reaction of Rh2(OAc)4-Generated Transient Carbonyl Ylides: Chemoselective Synthesis of Epoxy-Bridged Tetrahydropyranone, Oxepanone, Oxocinone, and Oxoninone Ring Systems
J. Org. Chem. 2007, 72, 1252.
(22) Muthusamy, S.*; Babu, S. A.; Nethaji, M.
Title: A Facile Regioselective Construction of Spiro Epoxy-Bridged Tetrahydropyranone Frameworks
Tetrahedron 2003, 59, 8117.
(21) Babu, S. A.
Title: InCl3: A Mild Lewis Acid but Efficient Reagent in Organic Synthesis
Synlett 2002, 531.
(20) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Ganguly, B.; Suresh, E.; Dastidar, P.
Title: Tandem Cyclization-Cycloaddition Behavior of Rhodium Carbenoids with Carbonyl Compounds: Stereoselective Studies on the Construction of Novel Epoxy-bridged Tetrahydropyranone Frameworks
J. Org. Chem. 2002, 67, 8019.
(19) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: Anomalous Behavior of Rh(II)-Generated Carbonyl Ylides: Entry into Functionalized Spiro Dioxa-Bridged Polycyclic Frameworks
Tetrahedron Lett. 2002, 43, 3931.
(18) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: Indium Triflate: A mild and Efficient Lewis Acid Catalyst for O-H Insertion Reaction of alpha-Diazo Ketones
Tetrahedron Lett. 2002, 43, 3133.
(17) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Suresh, E.; Dastidar, P.
Title: Generation and Cycloaddition Behavior of Seven-Membered Ring Carbonyl Ylides: Application to the Construction of Fused Cyclooctanoid Ring Systems
Bull. Chem. Soc., Jpn. 2002, 75, 801.
(16) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: Indium Triflate: A Mild Lewis Acid Catalyst for Thioacetalization and Transthioacetalization
Tetrahedron 2002, 58, 7897.
(15) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: An Efficient and Novel Stereoselective Protocol for the Construction of Syn-Facially Bridged Norbornane Frameworks
Tetrahedron Lett. 2002, 43, 5981.
(14) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Jasra, R. V.
Title: A New and Mild Heterogeneous Catalytic Decomposition of alpha-Diazo Carbonyl Compounds Using Montmorillonite or Zeolite.
Synlett 2002, 407.
(13) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: 1,8-Diazabicyclo[5.4.0]undec-7-ene: A powerful catalyst for Michael addition Reaction of beta-Keto Esters with Acrylates and Enones
Synth. Commun. 2002, 3247.
(12) Muthusamy, S.*; Gunanathan, C.; Babu, S. A.; Suresh, E.; Dastidar, P.
Title: First Example of Regiospecific Intermolecular C-H Insertion Reactions of Cyclic Rhodium Carbenoids: Novel Synthesis of 3,3'- Indolyloxindoles
J. Chem. Soc., Chem. Commun. 2002, 824.
(11) Muthusamy, S.*; Gunanathan, C.; Babu, S. A.
Title: Rhodium(II) Acetate Catalyzed Synthesis of Cyclic Enamides and Enamines via beta-Hydride Elimination
Synthesis 2002, 471.
(10) Muthusamy, S.*; Gunanathan, C.; Babu, S. A.
Title: Oxidative [3+2]-Cycloaddition Reactions of 1,3-Dicarbonyl Compounds to Exocyclic Alkenes: The Regiospecific Synthesis of Spirodihydrofurans
Synlett 2002, 787.
(9) Muthusamy, S.*; Gunanathan, C.; Babu, S. A.
Title: Novel Regioselective Synthesis of Decahydrobenzocarbazoles Using Rhodium Generated Carbonyl Ylides with Indoles
Tetrahedron Lett. 2001, 42, 523.
(8) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Jasra, R. V.
Title: Amberlyst-15 Mediated Decomposition of alpha-Diazo Carbonyl Compounds
Tetrahedron Lett. 2001, 42, 5113.
(7)Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Suresh, E.; Dastidar, P.; Jasra, R. V.
Title: Rhodium Generated Carbonyl Ylides with p-Quinones: Synthesis of Oxa-Polycyclic Systems
Tetrahedron 2001, 57, 7009.
(6) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Suresh, E.; Dastidar, P.
Title: Novel Intermolecular [3+2]-Cycloaddition Reaction of Carbonyl Ylides with Fulvenes: Entry into the Tetracyclo[6.5.1.01,6.09,13]Tetradecene Ring System
Synlett 2001, 1407.
(5) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: A Simple and Efficient Synthesis of Bicyclo[n.m.0]alkanediones
Synth. Commun. 2001, 31, 1205.
(4) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: Indium(III) Chloride as an Efficient, Convenient Reagent for Thioacetalization and Its Chemoselectivity
Tetrahedron Lett. 2001, 42, 359.
(3) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.; Suresh, E.; Dastidar, P.; Jasra, R. V.
Title: Facile Synthesis of Oxatricyclic Systems with Various Ring Sizes and Substituents
Tetrahedron 2000, 56, 6307.
(2) Muthusamy, S.*; Babu, S. A.; Gunanathan, C.
Title: Novel Chemoselective 1,3-Dipolar Cycloaddition Reaction of Rhodium Generated Carbonyl Ylides with Arylidenetetralones
Tetrahedron Lett. 2000, 41, 8839.
(1) Shanmugasundaram, M.; Babu, S. A.; Raghunathan, R.*; Malar, E. J. P.
Title: Novel Regioselective 1,3-Dipolar Cycloaddition Reaction of Diphenylnitrilimines with Arylidenetetralones
Heteroatom Chem. 1999, 10, 331.