Synthesis of 9Z-9-Substituted Retinoic Acids by Palladium Catalyzed Coupling Reaction of a Vinyl Triflate with Alkenyl Stannanes.
作者:Akimori WADA、Yuki NOMOTO、Kenji TANO、Eriko YAMASHITA、Masayoshi ITO
DOI:10.1248/cpb.48.1391
日期:——
Palladium catalyzed cross coupling reactions of a vinyl triflate intermediate and various alkenyl stananes afforded trisubstituted Z-olefins stereoselectively in high yields. These olefins were then converted to the corresponding 9Z-retinoic acids via Horner-Emmons reaction and subsequent basic hydrolysis in excellent yields.
钯催化的乙烯基三氟磺酸酯中间体与各种烯基锡烷的交叉耦合反应,以高产率立体选择性地合成了三取代的Z型烯烃。随后通过Horner-Emmons反应和后续的碱性水解,这些烯烃以极佳的产率转化为相应的9Z型维甲酸。