作者:Sharon G. Boots、Marvin R. Boots
DOI:10.1002/jps.2600640737
日期:1975.7
A four-step synthesis of (RS)-carnitine chloride was developed using extremely mild reaction conditions and versatile intermediates. Crotyl chloride was converted to tert-butyl 3-butenoate using tert-butyl alcohol and triethylamine in ether. Treatment of tert-butyl 3-butenoate with m-chloroperbenzoic acid in chloroform afforded tert-butyl 3,4-epoxybutyrate. Reaction of this compound with trimethylamine
(RS)-肉碱氯化物的四步合成反应是利用极其温和的反应条件和多种中间体开发的。使用叔丁醇和三乙胺的乙醚溶液将巴豆酰氯转化为3-丁烯酸叔丁酯。用间氯过苯甲酸在氯仿中处理3-丁烯酸叔丁酯,得到3,4-环氧丁酸叔丁酯。该化合物与三甲胺盐酸盐在甲醇中反应,然后将叔丁酯进行轻度酸水解,得到(RS)-肉碱氯化物。