Concise synthesis of oxindole derivatives bearing a 3-trifluoroethyl group: Copper-catalyzed trifluoromethylation of acryloanilides
作者:Hiromichi Egami、Ryo Shimizu、Mikiko Sodeoka
DOI:10.1016/j.jfluchem.2013.03.009
日期:2013.8
Carbotrifluoromethylation of acryloanilide derivatives with the combination of CuI and Togni's reagent affords oxindolederivatives bearing a 3-trifluoroethyl group in high yields under mild conditions that are compatible with various functional groups.
Palladium-Catalyzed Oxidative Aryltrifluoromethylation of Activated Alkenes at Room Temperature
作者:Xin Mu、Tao Wu、Hao-yang Wang、Yin-long Guo、Guosheng Liu
DOI:10.1021/ja210614y
日期:2012.1.18
A palladium-catalyzed intramolecular oxidative aryltrifluoromethylation reaction of activated alkenes has been explored. The reaction allows for an efficient synthesis of a variety of CF(3)-containing oxindoles. Preliminary mechanistic study indicated that the reaction involves a C(sp(3))-Pd(IV)(CF(3)) intermediate, which undergoes reductive elimination to afford a C(sp(3))-CF(3) bond.
Copper-catalyzed trifluoromethylation of N-arylacrylamides “on water” at room temperature
作者:Fang Yang、Piyatida Klumphu、Yong-Min Liang、Bruce H. Lipshutz
DOI:10.1039/c3cc48131j
日期:——
A copper-catalyzed intramolecular trifluoromethylation of arylacrylamides leads to oxindole derivatives, effected with stable and inexpensive Langlois' reagent (CF3SO2Na). These reactions proceed via a radical process in water at room temperature. The aqueous solution can be recycled.