A transition metal-free tandem process to pyridazinopyrido[3,2-f][1,4]thiazepine-diones via Smiles rearrangement

作者:Niu Xiaoyi; Yang Bingchuan; Li Yanqiu; Fang Shuai; Huang Zixiao; Xie Caixia; Ma Chen*
来源:Organic and Biomolecular Chemistry, 2013, 11(24): 4102-4108.
DOI:10.1039/c3ob40719e

摘要

A transition metal-free methodology for the synthesis of pyridazinopyrido[3,2-f][1,4]thiazepine-diones was studied. The construction of this tricyclic system went through a one-pot coupling/Smiles rearrangement/cyclization process. The high yields of pure products were obtained through simple recrystallization.

全文