Visible light-induced organophotoredox-catalyzed difunctionalization of alkenes and alkynes

S Gupta, A Kundu, S Ghosh, A Chakraborty… - Green Chemistry, 2023 - pubs.rsc.org
In the era of organic synthesis, the direct difunctionalization strategies of alkenes and
alkynes are very eminent, which open up an excellent route to introduce two functional …

Visible-light-induced metal-free coupling of C (sp 3)–H sources with heteroarenes

A Ghosh, P Pyne, S Ghosh, D Ghosh, S Majumder… - Green …, 2022 - pubs.rsc.org
Development of an efficient, mild, economically viable, and green method for the
construction of a Csp2–Csp3 bond via coupling between a saturated hydrocarbon [(Csp3) …

Synthesis of quinoxalines through Cu-electrocatalytic azidation/annulation cascade at low catalyst loading

M Baidya, S De Sarkar - Organic Letters, 2023 - ACS Publications
A Cu-electrocatalytic azidation of N-aryl enamines and subsequent denitrogenative
annulation for the construction of quinoxaline frameworks is reported. Only 0.5 mol% of …

Electrochemical Organoselenium Catalysis for the Selective Activation of Alkynes: Easy Access to Carbonyl-pyrroles/oxazoles from N-Propargyl Enamines/Amides

M Baidya, J Dutta, S De Sarkar - Organic Letters, 2023 - ACS Publications
Intramolecular electro-oxidative addition of enamines or amides to nonactivated alkynes
was attained to access carbonyl-pyrroles or-oxazoles from N-propargyl derivatives …

Visible-light-induced cascade reaction: a sustainable approach towards molecular complexity

S Ghosh, P Pyne, A Ghosh, S Choudhury… - Organic & Biomolecular …, 2023 - pubs.rsc.org
Photoredox catalysis has demonstrated rapid evolution in the field of synthetic organic
chemistry. On the other hand, the splendour of cascade reactions in providing complex …

Redox-neutral carbon–heteroatom bond formation under photoredox catalysis

S Ghosh, S Majumder, D Ghosh, A Hajra - Chemical Communications, 2023 - pubs.rsc.org
Recently, visible-light-mediated photoredox catalysis has been emerging as one of the
fastest growing fields in organic chemistry because of its low cost, easy availability and …

Visible light-induced functionalization of indazole and pyrazole: a recent update

D Ghosh, S Ghosh, A Ghosh, P Pyne… - Chemical …, 2022 - pubs.rsc.org
Indazole and pyrazole are renowned as a prodigious class of heterocycles having versatile
uses in medicinal as well as industrial chemistry. Considering sustainable approaches …

Electrochemical C–H Sulfonylation of Hydrazones

B Sarkar, P Ghosh, A Hajra - Organic Letters, 2023 - ACS Publications
We have developed an electrochemical method for the direct C–H sulfonylation of aldehyde
hydrazones using sodium sufinates as the sulfonylating agent under supporting electrolyte …

[HTML][HTML] Recent advances in transition-metal-free C–H functionalization of imidazo [1, 2-a] pyridines

L Shi, T Li, GJ Mei - Green Synthesis and Catalysis, 2022 - Elsevier
Abstract Imidazo [1, 2-a] pyridines are unique nitrogen-containing organic compounds with
wide applications in pharmaceuticals, natural products, material science and …

Electrochemically Enabled Dehydrogenative Phosphorothiolation of 2H‐Indazoles under Electrolyte‐Free Conditions

P Ghosh, A Hajra - Advanced Synthesis & Catalysis, 2022 - Wiley Online Library
We have developed an electrochemical method for phosphorothiolation of 2H‐indazoles
using S‐hydrogen phosphorothioates via cross dehydrogenative coupling reaction under …