PREPARATION OF PENTAFLUOROSULFANYL (SF5) HETEROCYCLES: PYRROLES AND THIOPHENES
申请人:Zheng Zhaoyun
公开号:US20110040103A1
公开(公告)日:2011-02-17
The subject invention pertains to pentafluorosulfonyl (SF5) substituted pyrroles, thiophenes, 3-pyrrolines and 2,5-dihydrothiophenes, as well as methods for their synthesis.
本发明涉及五氟磺酰(SF5)取代的吡咯、噻吩、3-吡咯烷和2,5-二氢噻吩,以及它们的合成方法。
US7943787B2
申请人:——
公开号:US7943787B2
公开(公告)日:2011-05-17
Use of 1,3-dipolar reactions for the preparation of SF5-substituted five-membered ring heterocycles. Pyrroles and thiophenes
作者:William R. Dolbier、Zhaoyun Zheng
DOI:10.1016/j.jfluchem.2011.03.017
日期:2011.6
4-pentafluorosulfanylthiophenes, the latter of which are to our knowledge the first reported SF5-substituted thiophenes. The 1,3-cycloadditions of these ylides with aryl and alkyl, SF5-alkynes produce dihydro-pyrroles and thiophenes, which without isolation can then be oxidatively aromatized to the respective pentafluorosulfanylpyrroles and thiophenes in good yield.