title: Iodine-catalyzed regioselective thiolation of imidazo[1,2-a]pyridines using sulfonyl hydrazides as a thiol surrogate.
abstract: Iodine-catalyzed regioselective sulfenylation of imidazo[1,2-a]pyridines via C(sp(2))-H bond functionalization has been achieved using sulfonyl hydrazides as a thiol surrogate. A library of 3-sulfanylimidazopyridines with broad functionalities was synthesized under metal and oxidant-free practical reaction conditions. This methodology is also applicable for the regioselective sulfenylation of imidazo[2,1-b]thiazole and benzo[d]imidazo[2,1-b]thiazole.
authors: Department of Chemistry, Visva-Bharati, Santiniketan-731235, India. alakananda.hajra@visva-bharati.ac.in.
authors: Avik Kumar
authors: AK
authors: Bagdi
authors: Shubhanjan
authors: S
authors: Mitra
authors: Monoranjan
authors: M
authors: Ghosh
authors: Alakananda
authors: A
authors: Hajra
mesh_terms: D002384:Catalysis; D006834:Hydrazines / Q000737:chemistry*; D007455:Iodine / Q000737:chemistry*; D015394:Molecular Structure; D011725:Pyridines / Q000737:chemistry*; D013237:Stereoisomerism; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D006834:Hydrazines; D011725:Pyridines; D013438:Sulfhydryl Compounds; D007455:Iodine; C001439:imidazo(1,2-a)pyridine