Fluorinated acetylenes. Part 8 [1]. Preparation and some reactions of 5,5,5-trifluoropent-3-yn-2-ol, 5,5,5-trifluoro-1-phenylpent-3-yn-2-ol and the derived ester, 2-acetoxy-5,5,5-trifluoropent-3-yne
作者:Lakhdar Sibous、Anthony E. Tipping
DOI:10.1016/s0022-1139(00)80079-2
日期:1993.5
respectively.Cycloaddition also takes place between ester 2 and furan, but the majorproducts (considered to be isomeric 1:1 adducts) have not been fully characterised.Although, ester 2 undergoes reaction with trifluoronitrosomethane, a cycloadduct hasnot been isolated, while nucleophilic attack by imidazole on the triple bond leads to the(Z)-alkene (18).
2-bromo-3,3,3-trifluoropropene: A facile trifluoromethylacetylene anion synthon
作者:Alan R. Katritzky、Ming Qi、Adam P. Wells
DOI:10.1016/s0022-1139(96)03494-x
日期:1996.10
The introduction of trifluoromethylacetylene units into organic compounds has been further studied and extended. The direct reaction of two equivalents of Lithium Diisopropylamide with 2-bromo-3,3,3-trifluoropropene gave lithium trifluoromethylacetylide, the anion of which was trapped in greater than 90% overall yield with a variety of electrophiles.
Direct access to trifluoromethylated α-hydroxyketones from silver-catalyzed hydroacyloxylation of trifluoromethyl propynols with acids
作者:Xiao-Fang Song、Li-Jing Zhang、Xing-Guo Zhang、Hai-Yong Tu