Synthesis of tetrasubstituted thiophenes via a [3+2] cascade cyclization reaction of pyridinium 1,4-zwitterionic thiolates and activated allenes

• DOI: 10.1039/d0cc00262c
• Publication Date: 2020-02-07T02:23:30Z
• Authors: Shengxian Zhai; Xinping Zhang; Bin Cheng; Hui Li; Yuntong Li; Yixuan He; Yun Li; Taimin Wang; Hongbin Zhai
• Keywords: Cascade reaction

A [3+2] cascade cyclization reaction of pyridinium 1,4-zwitterionic thiolates and activated allenes was developed to access tetrasubstituted thiophenes.