Publications
2025 ----------------------------------------------------------
Bifunctional NHC-Catalyzed Asymmetric Intramolecular Conjugate Addition via Noncovalent Interaction
Ujjwal Maji,‡ Arpita Baidya,‡ Supriyo Das, and Joyram Guin*
C(sp2)-H Acylation of Benzo[h]quinolines at Room Temperature via Aldehyde Autoxidation and Palladium Catalysis Cooperation
Ishita Roy, Nilangshu Mandal, Promita Biswas, Ayan Datta and Joyram Guin*
Asymmetric Synthesis of Benzofuranones with a C3 Quaternary Center via an Addition/Cyclization Cascade Using Noncovalent N-Heterocyclic Carbene Catalysis
Ujjwal Maji, Supriyo Das, Arpita Baidya, Ishita Roy, and Joyram Guin*
Asymmetric Intermolecular Conjugate Addition of 3-Substituted-2-benzofuranones to Maleimides via Non-covalent NHC Catalysis
Bhaskar Deb Mondal,‡ Sadhan Gorai,‡ and Joyram Guin*
Photocatalytic Synthesis of β-Keto Primary Chlorides by Selective Chlorocarbonylation of Olefins
Bitasik Khatua, Anjulika Ghosh, Anuj Kumar Ray, Nayan Banerjee, Jayanta Dey, Ankan Paul*, Joyram Guin*
Enantioselective Amination of 3-Substituted-2-benzofuranones via Non-covalent N-Heterocyclic Carbene Catalysis
Photochemical Oximesulfonylation of Alkenes Using Sulfonyl-Oxime-Ethers as Bifunctional Reagents
Angew. Chem. Int. Ed. 2023, 62, e202312384 [click here]
Brønsted Acid-Promoted Intermolecular Dearomative Photocycloaddition of Bicyclic Azaarenes with Olefins under Aerobic Conditions
N-Heterocyclic carbene catalyzed desymmetrization of diols: access to enantioenriched oxindoles having a C3-quaternary stereocenter
Sourav Dutta, ‡ Arka Porey, ‡ Joyram Guin
Asymmetric Aminative Dearomatization of 2-Naphthols via Non-covalent N-Heterocyclic Carbene Catalysis
Ujjwal Maji, Bhaskar Deb Mondal, Joyram Guin
Photocatalytic Incorporation of an Oxime Ether Functional Group at Inert C(sp3)–H Bonds via HAT
Jayanta Dey, Subhasis Paul, Manotosh Bhakat, Joyram Guin
Metal-Free Radical C-H Functionalization via Aldehyde Auto-Oxidation
(Book Chapter 7: Metal-Complex and Metal-Free Catalysis, Handbook of CH-Functionalization) (Online ISBN: 9783527834242)
Photocatalytic Aerobic Coupling of Azaarenes and Alkanes via Nontraditional Cl• Generation
Manotosh Bhakat, Bitasik Khatua and Joyram Guin
2,5-Cyclohexadiene-1-Carbonitrile, 1-(1-Methylethyl)
Encyclopedia of Reagents for Organic Synthesis (EROS)
Sourav Dutta and Joyram Guin
Heteroarylation of Ethers, Amides, and Alcohols with Light and O2
Manotosh Bhakat, Promita Biswas, Jayanta Dey, Joyram Guin
Hydrogen-Bonding Assisted Catalytic Kinetic Resolution of Acyclic β-Hydroxy Amides
A general approach to intermolecular olefin hydroacylation via light induced HAT initiation: an efficient synthesis of long chain aliphatic ketones and functionalized fatty acids
Aerobic Acylarylation of α,β-Unsaturated Amides with Aldehydes
Promita Biswas, Subhasis Mandal and Joyram Guin
Palladium‐Catalyzed Decarboxylative ortho‐C(sp2)−H Aroylation of N‐Sulfoximine Benzamides at Room Temperature
Prasenjit Das, Promita Biswas, and Joyram Guin
Enantioselective α-Amination of Acyclic 1,3-Dicarbonyls Catalyzed by N-Heterocyclic Carbene
Surojit Santra, Ujjwal Maji, and Joyram Guin
Synthesis of Phenolic Compounds via Palladium Catalyzed C−H Functionalization of Arenes
Debajyoti Saha, Prasenjit Das, Promita Biswas and Joyram Guin
Radical C-H Acylation of Nitrogen Heterocycles Induced by an Aerobic Oxidation of Aldehydes
Subhasis Paul, Manotosh Bhakat and Joyram Guin
Highly Enantioselective Synthesis of Functionalized Glutarimide Using Oxidative N-Heterocyclic Carbene Catalysis: A Formal Synthesis of (−)-Paroxetine
Arka Porey, Surojit Santra and Joyram Guin
N-Heterocyclic carbenes as chiral Brønsted base catalysts: a highly diastereo- and enantioselective 1,6-addition reaction
Surojit Santra , Arka Porey and Joyram Guin
Molecular Oxygen Mediated Radical Dicarbofunctionalization of Olefin with Aldehyde
Promita Biswas and Joyram Guin
Direct C(sp2)−H Hydroxylation of Arenes with Palladium(II)/Oxygen Using Sulfoximines as a Recyclable Directing Group
Prasenjit Das and Joyram Guin
1,6‐Conjugate Addition of 1,3‐Dicarbonyl Compounds to para‐Quinone Methides Enabled by Noncovalent N‐Heterocyclic Carbene Catalysis
Surojit Santra, Arka Porey, Joyram Guin
Radical C(sp3 )–H alkenylation, alkynylation and allylation of ethers and amides enabled by photocatalysis
Subhasis Paul and Joyram Guin
Synthesis of 3,3-Dialkylated Oxindoles by Oxidative Radical 1,2-Alkylarylation of α,β-Unsaturated Amides
Promita Biswas, Subhasis Paul and Joyram Guin
Aerobic Direct C(sp2)‑H Hydroxylation of 2‑Arylpyridines by Palladium Catalysis Induced with Aldehyde Auto-Oxidation
Prasenjit Das, Debajyoti Saha, Dibyajyoti Saha, and Joyram Guin
Aerobic Radical‐Cascade Alkylation/Cyclization of α,β‐Unsaturated Amides: an Efficient Approach to Quaternary Oxindoles
Promita Biswas, Subhasis Paul and Joyram Guin
Direct N‐Acylation of Sulfoximines with Aldehydes by N‐Heterocyclic Carbene Catalysis under Oxidative Conditions
Arka Porey‡, Surojit Santra‡ and Joyram Guin
Dioxygen‐Mediated Decarbonylative C-H Alkylation of Heteroaromatic Bases with Aldehydes
Subhasis Paul and Joyram Guin
Enhanced Reactivity of Aerobic Diimide Olefin Hydrogenation with Arylboronic Compounds: An Efficient One‐Pot Reduction/Oxidation Protocol
Surojit Santra and Joyram Guin
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Prior to IACS -------------------------------------------------------------------
Asymmetric counteranion-directed Lewis acid organocatalysis for the scalable cyanosilylation
of aldehydes
Zhipeng Zhang, Han Yong Bae, Joyram Guin, Constantinos Rabalakos, Manuel van Gemmeren, Markus Leutzsch, Martin Klussmann and Benjamin List
Nat. commun. 2016, 7, 12478
The Catalytic Asymmetric Abramov Reaction
Joyram Guin, Qinggang Wang, Manuel van Gemmeren, and Benjamin List
Angew. Chem. Int. Ed. 2015, 54, 355
Modular Synthesis of pH-Sensitive Fluorescent Diaza[4]helicenes
Antoine Wallabregue, Petr Sherin, Joyram Guin, Céline Besnard, Eric Vauthey, and Jérôme Lacour
Eur. J. Org. Chem. 2014, 6431
Catalytic Asymmetric Protonation of Silyl Ketene Imines
Joyram Guin, Georgy Varseev, and Benjamin List
J. Am. Chem. Soc. 2013, 135, 2100
Highly Enantioselective Hetero-Diels–Alder Reaction of 1,3-Bis-(silyloxy)-1,3-dienes with Aldehydes Catalyzed by Chiral Disulfonimide
Joyram Guin, Constantinos Rabalakos, and Benjamin List
Angew. Chem. Int. Ed. 2012, 51, 8859
Radical-Transfer Hydroamination of Olefins with N-Aminated Dihydropyridines
Chih-Ming Chou, Joyram Guin, Christian Mck-Lichtenfeld, Stefan Grimme, and Armido Studer
Chem. Asian J. 2011, 6, 1197
Highly selective additions of hydride and organolithium nucleophiles to helical carbenium ions
Joyram Guin, Céline Besnard, Philip Pattisoncd and Jérôme Lacour
Chem. Sci., 2011, 2, 425
Synthesis, Resolution, and Stabilities of a Cationic Chromenoxanthene [4]helicene
Joyram Guin, Céline Besnard and Jérôme Lacour
Org. Lett., 2010, 12, 1748
(2,6-Dimethoxy-1-methyl-2,5-cyclohexadien- 1-yl)(1,1-dimethylethyl)dimethylsilane
Joyram Guin and Armido Studer
Electronic Encyclopedia of Reagents for Organic Synthesis (e-EROS); J. Wiley & Sons, (2008)
Biomimetic Carbene-Catalyzed Oxidations of Aldehydes Using TEMPO
Joyram Guin, Suman De Sarkar, Stefan Grimme, and Armido Studer
Angew. Chem. Int. Ed. 2008, 47, 8727
Thiol-Catalyzed Stereoselective Transfer Hydroamination of Olefins with N-Aminated Dihydropyridines
Joyram Guin, Roland Fröhlich, and Armido Studer
Angew. Chem. Int. Ed. 2008, 47, 779
Radical Transfer Hydroamination with Aminated Cyclohexadienes Using Polarity Reversal Catalysis: Scope
and Limitations
Joyram Guin, Christian Mück-Lichtenfeld, Stefan Grimme,, and Armido Studer
J. Am. Chem. Soc. 2007, 129, 4498
Uncatalyzed condensation between aryl-1,2-diamines and diethyl bromomalonate: a one-pot access to substituted ethyl 3-hydroxyquinoxaline-2-carboxylates
Pranab Haldar, Bishnupada Dutta, Joyram Guin and Jayanta K. Ray
Tetrahedron Lett. 2007, 48, 5855
Sodium borohydride–iodine mediated reduction of c-lactam carboxylic acids followed by DDQ mediated oxidative aromatisation: a facile entry to N-aryl-formylpyrroles
Pranab Haldar, Joyram Guin and Jayanta K. Ray
Tetrahedron Lett. 2005, 46, 1071