The RBS Group

Department of Chemistry,
3rd floor, Room No: 418-A
IIT Bombay,

Publications :    (Selected list from a total of 127 publications)

  • Bhaskararao, B.; Sunoj, R. B.;   ' Asymmetric Dual Chiral Catalysis using Iridium-Phosphoramidites and Diarylprolinol Silyl Ethers: Insights on Stereodivergence '
    ACS Catal., 2017, (Accepted for publication).     

  • Singh, S.; Surya, K.; Sunoj, R. B.   ' Aliphatic C(sp3)-H Bond Activation Using Nickel Catalysis: Mechanistic Insights on Regioselective Arylation'
    J. Org. Chem., 2017, (Accepeted for publication),.     

  • Sreenithya, A.; Patel, C.; Hadad, C. M. Sunoj, R. B.   ' Hypercoordinate Iodine Catalysts in Enantioselective Transformation: The Role of Catalyst Folding in Stereoselectivity'
    ACS Catal., 2017, 7, 4189.     

  • Changotra, A.; Das, S.; Sunoj, R. B.   ' Reversing Enantioselectivity using Noncovalent Interactions in Asymmetric Dearomatization of β-Naphthols: The Power of 3,3' Substituents in Chiral Phosphoric Acid Catalysts'
    Org. Lett., 2017, 19, 2354.     

  • Avila, C.; Patel, J.; Reddi, Y.; Saito, M.; Nelson, H.; Shunatona, M.; Sigman, M.; Sunoj, R. B.; Toste, F. D.   ' Enantioselective Heck-Matsuda Arylations via Chiral Anion Phase Transfer of Aryl Diazonium Salts'
    Angew. Chemie. Int. Ed., 2017, 56, 5806.     

  • Kumarasamy, E.; Raghunathan, R.; Kandappa, S.; Sreenithya, A.; Jockusch, S.; Sunoj, R. B.; Sivaguru, J.   'Transposed Paternò-Büchi Reaction'
    J. Am. Chem. Soc., 2017, 139, 655.     

  • Reddi, Y.; Sunoj, R. B.;   ' Origin of Stereoselectivity in Cooperative Asymmetric Catalysis Involving N-Heterocylic Carbenes and Lewis Acids toward the Synthesis of Spirooxindole Lactone'
    ACS Catal., 2017, 7, 530.     

  • Athira, C.; Sunoj, R. B.;   ' Role of Lewis Acid Acid Additives in a Palladium Catalyzed Directed C–H Functionalization Reaction of Benzohydroxamic Acid to Isoxazolone'
    Org. Biomol. Chem., 2017, 15, 246.     

  • Sreenithya, A.; Surya, K. Sunoj, R. B.;   ' Hypercoordinate Iodine(III) Promoted Reactions and Catalysis: An Update on Current Mechanistic Understanding'
    WIRES: Computational Molecular Science, 2017 , (Accepted for publication).     

  • Patel, C.; Abraham, V.; Sunoj, R. B.;   ' Mechanistic Insights and the Origin of Regio-Selective Borylation in an Iridium-Catalyzed Alkyl C(sp3)-H Bond Functionalization'
    Orgnometallics, 2017, 36, 151.     

  • Parek, M.; Sunoj, R. B.;   ' Mechanism and Stereoselectivity in an Asymmetric N-Heterocyclic Carbene Catalyzed Carbon-Carbon Bond Activation Reaction'
    Org. Lett., 2016, 18, 5932.     

  • Changotra. A.; Sunoj, R. B.;   ' On Origin of Kinetic Resolution of Hydroxy Esters through Catalytic Enantioselective Lactonization by Chiral Phosphoric Acids'
    Org. Lett., 2016, 18, 3730.

  • Kisan, H. K.; Sunoj, R. B.;   ' Asymmetric Cooperative Catalysis in a Three-Component Reaction: Mechanism and Origin of Enantio- and Diastereo- Selectivities'
    Org. Lett., 2016, 18, 3746.     

  • Sunoj, R. B.   ' Transition State Models for Understanding the Origin of Chiral Induction in Asymmetric Catalysis'
    Acc. Chem. Res., 2016, 49, 1019.     

  • Pareek, M.; Sunoj, R. B.;   ' Cooperative Asymmetric Catalysis by N-Heterocyclic Carbenes and Brønsted Acid in a γ-Lactam Formation: Insights on Mechanism and Stereoselectivity'
    ACS Catal., 2016, 6, 3118.     

  • Anand, M.; Sunoj, R. B.; Schaefer, H. F.   ' Palladium–Silver Cooperativity in an Aryl Amination Reaction through C-H Functionalization '
    ACS Catal., 2016, 6, 696.     

  • Bhaskararao, B.; Sunoj, R. B.;   ' Origin of Stereodivergence in Cooperative Asymmetric Catalysis with Simultaneous Involvement of Two Chiral Catalysts '
    J. Am. Chem. Soc., 2015, 137, 15712.     

  • Reddi, Y.; Sunoj, R. B.;   ' Mechanistic Studies on Stereoselective Organocatalytic Direct β-C−H Activation in an Aliphatic Chain by Chiral N-Heterocyclic Carbenes '
    ACS Catalysis, 2015, 5, 5794.     

  • Jindal, G.; Sunoj, R. B.;   ' Deciphering the Origin of Stereoinduction in Cooperative Asymmetric Catalysis Involving Pd(II) and Chiral Brønsted Acid '
    Org. Lett. 2015, 17, 2874.     

  • Kisan, H. K.; Sunoj, R. B.;   ' The Axial Coordination Dichotomy in Dirhodium Carbenoid Catalysis: A Curious Case of Cooperative Asymmetric Dual Catalytic Approach toward Amino Ester '
    J. Org. Chem. 2015, 80, 2192.     

  • Reddi, Y.; Sunoj, R. B.;   ' Asymmetric Dual-Catalytic Cascade by Chiral N-Heterocyclic Carbene and Quinuclidine: Mechanism and Origin of Enantioselectivity in Benzofuranone Formation '
    ACS Catalysis, 2015, 5, 1596.     

  • Jindal, G.; Kisan, H. K.; Sunoj, R. B.;   ' Mechanistic Insights on Cooperative Catalysis through Computational Quantum Chemical Methods '
    ACS Catalysis, 2015, 5, 480.     

  • Sreenithya, A.; Sunoj, R. B.;   ' Mechanistic Insights on Iodine(III) Promoted Metal-free Dual C-H Activation Involved in the Formation of a Spirocyclic bis-Oxindole '
    Org. Lett., 2014, 16, 6224.     

  • Jindal, G.; Sunoj, R. B.;   ' Importance of Ligand Exchanges in Pd(II)-Brønsted Acid Cooperative Catalytic Approach to Spirocyclic Rings '
    J. Am. Chem. Soc., 2014, 136, 15998.     

  • Kisan, H. K.; Sunoj, R. B.;   ' Deciphering the Origin of Cooperative Catalysis by Dirhodium Acetate and Chiral Spiro Phosphoric Acid in an Asymmetric Amination Reation'
    Chem.Comm, 2014, 50, 14639.     

  • Jindal, G.; Sunoj, R. B.;   ' Mechanistic Insights on Cooperative Asymmetric Multi-Catalysis using Chiral Counterions'
    J. Org. Chem., 2014, 79, 7600.     

  • Sharma, A. K.; Roy, D.; Sunoj, R. B.;   ' Mechanism of Catalytic Methylation of 2-Phenylpyridine Using di-tert-Butyl Peroxide'
    Dalton Trans., 2014, 43, 10183.     

  • Anand, M.; Sunoj, R. B.; Schaefer, H. F.  'Non-Innocent Additives in a Palladium(II)-Catalyzed C-H Bond Activation Reaction: Insights into Multi-Metallic Active Catalysts'
    J. Am. Chem. Soc., 2014, 136, 5535.(communication)     

  • Jindal, G.; Sunoj, R. B.  'Axially Chiral Imidodiphosphoric Acid Catalyzed Asymmetric Sulfoxidation Reaction: Insights on Asymmetric Induction'
    Angew. Chemie., Int. Ed., 2014, 53, 4432.     

  • Jindal, G; Sunoj, R. B.  'Transition State Modeling in the Rational Design of Catalysts for Asymmetric Diamination Reactions'
    Org. Biomol. Chem., 2014, 12, 2745.     

  • Verma, P; Verma, P; Sunoj, R. B.  'Mechanism of NHC Catalyzed Aza-Morita-Baylis-Hillman Reaction: Insights on a New Substrate-Catalyzed Bimolecular Pathway'
    Org. Biomol. Chem., 2014, 12, 2176.     

  • Kuniyil, R.; Sunoj, R. B.  'N-Heterocyclic Carbene Catalyzed Asymmetric Intermolecular Stetter Reaction: Origin of Enantioselectivity and Role of Counterions'
    Org. Lett., 2013, 15, 5040.     

  • Parija, A.; Sunoj, R. B.  'Mechanism of Catalytic Functionalization of Primary C–H Bonds Using a Silylation Strategy'
    Org. Lett., 2013, 15, 4066.     

  • Rajeev, R.; Sunoj, R. B.  'Mechanism and Stereoselectivity of Biologically Important Oxygenation Reactions of 7-Dehydrocholesterol (7-DHC) Radical'
    J. Org. Chem., 2013, 78, 7023.     

  • Katayev, D.; Banarjee, D.; Jia, Y.-X.; Besnard, C.; Sharma, A. K.; Sunoj, R. B.; Kundig, P. E.    'Synthesis of 3,3-Disubstituted Oxindoles by Palladium-Catalyzed Asymmetric Intramolecular α-Arylation of Amides. Reaction Development and Mechanistic Studies'
    Chem. Eur. J. 2013, 11, 11916.

  • Thawani, A.; Rajeev, R.; Sunoj, R. B.   'On the Mechanism of Conversion of Hexane to Benzene by an Iridium Pincer Catalyst'
    Chem. Eur. J. 2013, 19, 4069.

  • Sharma, A. K.; Sunoj, R. B.   'Refined Transition State Models for Proline-Catalyzed Asymmetric Michael Reactions Under Basic and Base-free Conditions'
    J. Org. Chem. 2012, 77, 10516.

  • Sengupta, A.; Sunoj, R. B.   'Mechanistic Insights on Organocatalytic Enantioselective Decarboxylative Protonation by Epicinchona-Thiourea Hybrid Derivatives'
    J. Org. Chem. 2012, 77, 10525.

  • Sreenithya, A.; Sunoj, R. B.   'Non-innocent Role of NMP in Thiazolidinethione-Promoted Asymmetric Aldol Reactions'
    Org. Lett. 2012, 14, 5752.

  • Anand, M.; Sunoj, R. B.   'Mechanism of Cooperative Catalysis in a Lewis Acid Promoted Nickel-Catalyzed Dual C-H Activation Reaction'
    Org. Lett. 2012, 14, 4584.

  • Anand, M.; Sunoj, R. B.   'The Role of Explicit Solvents in Pd(II)-Catalyzed Alkoxylation of Arenes: An Interesting Paradigm for Preferred Outer-Sphere Reductive Elimination over Inner-Sphere Pathway'
    Organometallics 2012, 31, 6466.

  • Sunoj, R. B. , Anand, M.  'Microsolvated Transition State Models for Improved Insights on Chemical Properties and Reaction Mechanisms'
    Phys. Chem. Chem. Phys., 2012, 14, 12715.     

  • Reddi, Y.; Sunoj, R. B.   'Origin of Stereoselectivity in a Chiral N-Heterocyclic Carbene-Catalyzed Desymmetrization of Substituted Cyclohexyl-1,3-diketones'
    Org. Lett., 2012, 14, 2810.     

  • Jindal, G.; Sunoj, R. B.   'Mechanistic Insights into the Role of Chiral Ligands in Asymmetric Diamination Reactions'
    Chem. Eur. J.,2012, 18, 7045.     

  • Rajeev, R.; Sunoj, R. B.  'On the Origin of Regio- and Stereoselectivity in Singlet Oxygen Addition to Enecarbamates'
    J. Org. Chem., 2012, 77, 2474.     

  • Anand, M.; Sunoj, R. B  'Palladium(II)-Catalyzed Direct Alkoxylation of Arenes: Evidence for Solvent Assisted Concerted Metallation Deprotonation'
    Org. Lett., 2011, 13 , 4802.     

  • Verma, P.; Patni, P.; Sunoj, R. B.  'Mechanistic Insights on N-Heterocyclic Carbene Catalyzed Annulations: The Role of Base-Assisted Proton Transfers '
    J. Org. Chem.,2011, 76, 5606.     

  • Sharma, A. K.; Sunoj, R. B.  'Stereocontrol in Proline-Catalyzed Asymmetric Amination: A Comparative Assessment of the Role of Enamine Carboxylic Acid and Enamine Carboxylate'
    Chem. Commun.,2011, 47, 5759.     

  • Kumari, M.; Balaji, P. V.; Sunoj, R. B.  'Quantification of Binding Affinities of Essential Sugars with Tryptophan Analogue and the Ubiquitous Role of C-H...pi interactions'
    Phys. Chem. Chem. Phys.,2011, 13, 6517.     

  • Patil, M. P.; Sharma, A. K.; Sunoj, R. B.  'On the Importance of the Nature of alpha-Substituents in Pyrrolidine Organocatalysts in Asymmetric Michael Additions'
    J. Org. Chem.,2010, 75, 7310.     

  • Shinisha, C. B.; Sunoj, R. B.  'Transition State Models for Probing Stereoinduction in Evans Chiral Auxiliary-Based Asymmetric Aldol Reactions'
    J. Am. Chem. Soc.,2010, 132, 12315.     

  • Sharma, A. K.; Sunoj, R. B.  'Enamine versus Oxazolidinone: What Controls Stereoselectivity in Proline-Catalyzed Asymmetric Aldol Reactions?'
    Angew. Chemie. Int. Ed.,2010, 49, 6373.     

  • Shinisha, C. B.; Sunoj, R. B.  'The pivotal role of chelation as a stereochemical control element in non-Evan's anti aldol product formation'
    Org. Lett.,2010, 12, 2868.     

  • Patel, C.; Sunoj, R. B.  'TiCl4 Promoted Baylis-Hillman Reaction: Mechanistic Rationale Toward Product Distribution and Stereoselectivity'
    J. Org. Chem.,2010, 75, 359.     

  • Roy, D.; Sunoj, R. B.  'Ni, Pd, or Pt Catalyzed Ethylene Dimerization: A Mechanistic Description of the Catalytic Cycle and the Active Species'
    Org. Bimol. Chem.2010, 8 ,1040.     

  • Rajeev, R.; Sunoj, R. B.  'On the Origin of Reversible Hydrogen Activation by Phosphino-Boranes'
    Chem. Eur. J.,2009 15, 12846.     

  • Roy, D.; Patel, C.; Sunoj, R. B.  'Mechanistic Insights and the Role of Co-catalysts in Aza-Morita-Baylis-Hillman and Morita-Baylis-Hillman Reaction'
    J. Org. Chem.,2009, 74, 6936.     

  • Shinisha, C. B.; Sunoj, R. B.  'On the Origin of Kinetic Resolution of Cyclohexane 1,2-diols Through Stereoselective Acylation by Chiral Tetrapeptides'
    Org. Lett.,2009, 11 , 3242.     

  • Patil, M. P.; Sunoj, R. B.  'On the Relative Preference of Enamine/Iminium Pathways in Organocatalytic Michael Addition of Aldehydes to a,b-Unsaturated Ketones'
    Chem. Asian J.,2009, 4, 714 .     

  • Shinisha, C. B; Sunoj, R. B.  'Unraveling High Precision Stereocontrol in a Triple Cascade Organocatalytic Reaction'
    Org. Biomol. Chem.,2008, 6, 3921. :[featured as the front cover page of issue no 21, 2008].     

  • Roy, D.; Sunoj, R. B.   'Water-Catalysis in Morita-Baylis-Hillman Reaction: A Mechanistic Perspective'
    Chem. Eur. J.,2008, 14, 10530.     

  • Patil, M. P; Sunoj, R. B.  'The Role of Non-innocent Solvent Molecules in Organocatalyzed Asymmetric Michael Reaction'
    Chem. Eur. J., 2008, 14, 10472.     

  • Roy, D.; Patel, C.; Liebman, J. F.; Sunoj, R. B.  'Probing Intramolecular Interactions in Arylselenides Using a Property Descriptor Based Approach'
    J. Phys. Chem. A.,2008, 112, 8797-8803.     

  • Sarkar, B.; Patra, S.; Fiedler, J.; Janardanan, D.; Sunoj, R. B .; Lahiri, G. K.; Kaim, W.   'Mixed-Valent Metals Bridged by a Radical Ligand: Fact, or Fiction Based on Structure-Oxidation State Correlations'
    J. Am. Chem. Soc.,2008, 130, 3532.     

  • Roy .D.; Sunoj, R. B.  'Ab initio and Density Functional Theory Evidence on the Rate-Limiting Step in the Morita-Baylis-Hillman Reaction'
    Org. Lett., 9, 4873, 2007.     

  • Patil, M.P.; Sunoj, R. B.  'Insights on Co-catalyst Promoted Enamine Formation between Dimethylamine and Propanal through Ab-initio and Density Functional Theory Study'
    J. Org. Chem.,2007, 72, 8202.     

  • Janardanan, D.; Sunoj, R. B.  'Computational Investigations on the General Reaction Profile and Diastereoselection in Sulfur Ylide Promoted Aziridinations.'
    Chem. Eur. J.,2007, 13, 4805.     

  • Shinisha, C. B.; Sunoj, R. B.  'Bicyclic Proline Analogues as Organocatalysts for Stereoselective Aldol Reactions: An In-Silico Density Functional Theory Study'
    Org. Biomol. Chem., 2007, 5, 1287.     

  • Roy, D.; Sunoj, R. B  'Quantification of Intramolecular Nonbonding Interactions in Organochalcogens. '
    J. Phys. Chem. A,2006, 110, 5942.     

  • Sarkar, B.; Patra, S.; Fiedler, J.; Janardanan, D.; Mobin, S. M.; Niemeyer, M.; Lahiri, G. K.; Kaim, W; Sunoj, R. B.   'Theoretical and Experimental Evidence for a New Kind of Spin-Coupled Singlet Species: Isomeric Mixed-Valent Complexes Bridged by a Radical Anion Ligand. '
    Angew. Chemie, Int. Ed.,2005, 44, 5655.     

  • Pavlos, C. M.; Cohen, A. D.; D'Sa, R. A.; Wasylenko, W. A.; Kapur, P.; Relyea, H. A.; Kumar, N. A.; Hadad, C. M.; Toscano, J. P.; Sunoj, R. B.  'Photochemistry of 1-(N,N-Diethylamino)diazen-1-ium-1,2-diolate: An Experimental and Computational Investigation'
    J. Am. Chem. Soc.,2003, 125, 14934.     

  • Laxminarasimhan, P.; Chandrasekhar, J.; Ramamurthy, V.; Sunoj, R. B.   'Cation-pi Interaction Controlled Selective Geometric Photoisomerization of Diphenylcyclopropane'
    J. Am. Chem. Soc.,2000, 122, 4815.     

  • Moorthy, J. N.; Monahan, S. L.; Chandrasekhar, J.; Bohne, C.; Sunoj, R. B.   'Modulation of Lifetimes and Diastereomeric Discrimination in Triplet-Excited Substituted Butan-1, 4-diones through Intramolecular Charge-Transfer Quenching.'
    J. Am. Chem. Soc.,1999, 121, 3093 - 3103.     

  • Book Chapters and Reviews :    (Invited)

  • Sunoj, R. B.   'Covalent Activations: Rationalizing Reactivity and Selectivity in Iminium- and Enamine-Catalyzed Reactions’ in Comprehensive Enantioselective Organocatalysis: Catalysis, Reactions, and Applications. Dalko (Ed.,), Wiley-VCH'

  • Sunoj, R. B.   'Theoretical Aspects of Organoselenium Chemistry’ in ‘Patai’s Chemistry of Functional Groups: Organic Selenium and Tellurium Compounds, Volume 3, John Wiley&Sons, UK.'

  • Sunoj, R. B.   'Proline-Derived Organocatalysis: A Paradigm for Synergism between Theory and Experiments'
    Wiley Interdisciplinary Reviews: Computational Molecular Science,2011, 1, 920.     

  • Singh, H. B.; Mukherjee, A.; Zade, S.; Sunoj, R. B.   'Organoselenium Chemistry: Role of Intramolecular Interactions'
    Chem. Rev.,2010, 110, 4357.     

  • Shinisha, C. B.; Janardanan, D.; Sunoj, R. B.   'Design of Catalysts for Aymmetric Organic Reactions through Density Functional Calculations’ in ‘Challenges and Advances in Computational Chemistry and Physics’ Editor Jerzy Leszczynski, Springer Science'