Synthetic Applications of the Carbanion with a Fluoroalkyl Group Generated by Palladium(0) Catalyst under Neutral Conditions
作者:Yuzo Komatsu、Toru Sakamoto、Tomoya Kitazume
DOI:10.1021/jo990463r
日期:1999.10.1
fluorine atom(s) are described. Palladium(0)-catalyzed allylation reactions under neutral conditions proceeded smoothly in the system where a methylene group is activated by fluoroalkyl and carbonyl groups. In the above systems, the 2,2,2-trifluoroethyl moiety has been introduced onto the allylic position without the release of fluoride. Further, palladium(0)-catalyzed heterocyclization was achieved
描述了由一个或多个氟原子生成并合成应用在β位的稳定碳负离子的方法。在中性条件下,钯(0)催化的烯丙基化反应在由氟烷基和羰基活化亚甲基的系统中顺利进行。在以上系统中,将2,2,2-三氟乙基部分引入烯丙基位置而没有释放氟化物。此外,由环氧基乙烯与2-(三氟甲基)丙烯酸酯和/或2,3,3,3-四氟丙酸酯的反应实现了钯(0)催化的杂环化。