Imidoyl chlorides as starting materials for the preparation of masked acyllithium intermediates: synthetic applications
作者:Emma Alonso、Diego J. Ramón、Miguel Yus
DOI:10.1016/s0040-4020(98)83054-8
日期:1998.9
The lithiation of several imidoyl chlorides 5, catalysed by substoichiometric amounts of naphthalene, followed by reaction with different electrophiles gives, after hydrolysis, the corresponding imine derivatives 6 and 9 or amines 7, depending on the reaction conditions. The imine derivatives are easily converted into the corresponding ketones by treatment either with dilute hydrochloric acid, for
通过亚化学计量的萘催化几种亚氨基酰氯5的锂化,然后与不同的亲电试剂反应,在水解后,根据反应条件,得到相应的亚胺衍生物6和9或胺7。通过用稀盐酸(对于N-芳基衍生物)或用硅胶(对于N-烷基衍生物)处理,将亚胺衍生物容易地转化成相应的酮。得到的羟基亚胺与LiAlH 4反应,得到相应的1,2-氨基醇,为单一的非对映异构体。当亚胺部分在原位时,发现相同的结果用锂还原。得到的1,2-氨基醇很容易转变成相应的1,3-恶唑烷11通过与反应段在酸性催化下-甲醛。