E-Allylamines N-protected with the easily removable tert-butoxycarbonyl group are stereoselectively prepared in good to high yield through the palladium-catalysed reaction of vinyl triflates with N,N-di-tert-butoxycarbonyl-N-allylamine in the presence of AcOK and n-Bu4NCl. The reaction is very sensitive to the nature of the base. The use of bases other than AcOK has been examined and proved to be unsuccessful
在AcOK存在下,通过
钯催化
乙烯基三氟甲磺酸酯与N,N-二叔丁氧基羰基-N-
烯丙胺的
钯催化反应,以良好至高收率的立体选择性制备具有N-保护的易脱除叔丁氧羰基基团的E-
烯丙胺和n-Bu 4 NCl。该反应对碱的性质非常敏感。已检查使用AcOK以外的其他碱基并证明不成功。