摘要
Nosyl annulation of a bithiophene derivative with nosylamide (NsNH2) gives a 5-7-5 fused N, S-heterocyclic compound. The detailed molecular structure of the obtained nosylamide was analyzed by single-crystal X-ray crystallography. The obtained product was transformed into several amines and amides. The C-Br bond at the fused heterocycle was also subjected to cross-coupling reactions, where the nosyl group was found to be tolerant.