title: Synthesis of 2-N/S/C-substituted benzothiazoles via intramolecular cyclative cleavage of benzotriazole ring.
abstract: The synthesis of numerous 2-N/S/C-substituted benzothiazoles was achieved from substituted thiocarbonylbenzotriazoles via free-radical intramolecular cyclative cleavage of the benzotriazole ring in the presence of (TMS)3SiH and AIBN under mild conditions. The developed methodology demonstrates significant compatibility under microwave conditions and is important as it avoids the use of toxic metals for radical cyclization.
authors: Department of Chemistry, Center of Advanced Study, Faculty of Science, Banaras Hindu University , Varanasi-221005, India.
authors: Dhananjay
authors: D
authors: Kumar
authors: Bhuwan B
authors: BB
authors: Mishra
authors: Vinod K
authors: VK
authors: Tiwari
mesh_terms: D052160:Benzothiazoles / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D003500:Cyclization; D008670:Metals / Q000737:chemistry*; D008872:Microwaves; D015394:Molecular Structure; D013237:Stereoisomerism; D014230:Triazoles / Q000737:chemistry*
chemical_list: D052160:Benzothiazoles; D008670:Metals; D014230:Triazoles