133845-14-4Relevant articles and documents
Synthesis and conformation of some 2- and 4-heterocyclyltetrahydroindazoles
Singh, S P,Kumar, Devinder,Diwakar, P,Moriarty, Robert M
, p. 306 - 312 (2007/10/02)
Condensation of 2-hydrazinobenzothiazoles with 2-hydroxymethylenecyclohexanone (1) results in the formation of two isomeric products, namely, 2-(4', 5', 6', 7'-tetrahydro-1H-indazol-1-yl)benzothiazoles and 2-(4', 5', 6', 7'-tetrahydro-2H-indazol-2-yl)benzothiazoles. 2-Hydrazinothiazoles and 2-hydrazinoquinolines react in a similar fashion. 4-Hydrazinoquinolines, however, afford on reaction with 1, a single isomer, 4-(4', 5', 6', 7'-tetrahydro-1-H-indazol-1-yl)quinoline in each case.The structural assignment and conformation of these molecules are based on NMR (both 1H and 13C) studies.