Versatile Synthesis of Benzothiophenes and Benzoselenophenes by Rapid Assembly of Arylzinc Reagents, Alkynes, and Elemental Chalcogens
作者:Bin Wu、Naohiko Yoshikai
DOI:10.1002/anie.201304546
日期:2013.9.27
Rapidly aSSembled: The combination of cobalt‐catalyzed migratory arylzincation and copper‐mediated/catalyzed chalcogenative cyclization allows the construction of benzothiophenes and benzoselenophenes from arylzinc reagents, alkynes, and elemental chalcogens. Benzothiophenes and benzoselenophenes diversely functionalized at the benzene ring moiety can be prepared, which are not readily accessible by
快速组装:
钴催化的迁移性芳基化与
铜介导/催化的
硫属元素化环化相结合,可以从芳基
锌试剂,
炔烃和元素
硫属元素化合物中构建
苯并噻吩和苯并
硒基苯。可以制备在苯环部分被不同功能化的
苯并噻吩和苯并
硒吩,这是常规方法不易获得的。