Synthesis of 2-Fluoro-3-trifluoromethylthiophenes and 3-Trifluoromethylthiophenes from Hexafluoroacetone
摘要:
The transformation of bis(trifluoromethyl)-1-oxabuta-1,3-dienes (1) - available from hexafluoroacetone - into 2-fluoro-3-trifluoromethylthiopheneses (9) via 4,4-difluoro-3-trifluoromethyl-3-buten-1-ones (5) is described. The fluorine atom at skeleton position 2 of the thiophenes (9) is readily displaced by various nucleophiles.
Burger Klaus, Helmreich Brigitte, Popkova Vera Ya., German Lev S., Heterocycles, 39 (1994) N 2, S 819-832
作者:Burger Klaus, Helmreich Brigitte, Popkova Vera Ya., German Lev S.
DOI:——
日期:——
Synthesis of 2-Fluoro-3-trifluoromethylthiophenes and 3-Trifluoromethylthiophenes from Hexafluoroacetone
作者:Klaus Burger、Brigitte Helmreich、Vera Ya. Popkova、Lev S. German
DOI:10.3987/com-94-s(b)82
日期:——
The transformation of bis(trifluoromethyl)-1-oxabuta-1,3-dienes (1) - available from hexafluoroacetone - into 2-fluoro-3-trifluoromethylthiopheneses (9) via 4,4-difluoro-3-trifluoromethyl-3-buten-1-ones (5) is described. The fluorine atom at skeleton position 2 of the thiophenes (9) is readily displaced by various nucleophiles.