Efficient Direct Alkynylation of Trifluoromethyl Ketones Catalyzed by AgF in Water and Organic Solvents
作者:Chao-Jun Li、Guo-Jun Deng
DOI:10.1055/s-2008-1078421
日期:2008.6
A general and efficient method for the direct alkynylation of trifluoropyruvate and trifluoroacetophenone in water was developed by using AgF and PCy3 as a catalyst. The ligand enhanced the catalyst activity significantly. The reaction in water is comparable to the one carried out in organic solvents.
Alkynylation of cyclopropyl trifluoromethyl ketone catalyzed by CuF 2 ·2H 2 O/4,7-diphenyl-1,10-phenanthroline
作者:Xiao-Dong Liu、Hai-Yan Ma、Chun-Hui Xing、Long Lu
DOI:10.1016/j.tetlet.2017.03.010
日期:2017.4
CuF2·2H2O/4,7-diphenyl-1,10-phenanthroline was found to be a highly efficient catalyst for the nucleophilic alkynylation of cyclopropyl trifluoromethyl ketone. The corresponding trifluoromethyl-substituted tertiary propargyl alcohols were synthesized in moderate to excellent yields under mild conditions. The catalyst system could also be applied to aromatic trifluoromethyl ketone as well as trifluoropyruvate
发现CuF 2 ·2H 2 O / 4,7-二苯基-1,10-菲咯啉是用于环丙基三氟甲基酮的亲核烷基化的高效催化剂。在温和的条件下以中等至优异的产率合成了相应的三氟甲基取代的叔炔丙醇。该催化剂体系也可以应用于芳族三氟甲基酮以及三氟丙酮酸盐。