Introduction of the 4,4,4-Trifluorobut-2-ene Chain Exploiting a Regioselective Tsuji–Trost Reaction Catalyzed by Palladium Nanoparticles
作者:Rémy Hemelaere、Justine Desroches、Jean-François Paquin
DOI:10.1021/acs.orglett.5b00539
日期:2015.4.3
Tsuji–Trost reaction of 4,4,4-trifluorobut-2-en-1-yl acetate and ethyl(4,4,4-trifluorobut-2-en-1-yl)carbonate was accomplished with various nucleophiles including phenols, amines, and malonates. In the case of the phenols, isomerization of the double bond in the product (up to 20%) was observed as a side reaction. Further synthetic transformations including hydrogenation, the Diels–Alder reaction, and asymmetric
钯纳米颗粒催化的4,4,4-三氟丁-2-烯-1-基乙酸酯和碳酸(4,4,4-三氟丁-2-烯-1-基)乙酯的Tsuji-Trost反应完成了各种亲核试剂,包括酚,胺和丙二酸酯。在酚的情况下,作为副反应观察到产物中双键的异构化(最高20%)。还检查了进一步的合成转化,包括氢化,狄尔斯-阿尔德反应和产物的不对称二羟基化。