申请人:Petrolite Corporation
公开号:US05021587A1
公开(公告)日:1991-06-04
N,3,4-trisubstituted-3-azoline-2-ones (such as N-benzyl-3,4-dimethyl-3-azoline-2-one) are prepared by the reaction of an alkyl 2-chloro-2,3-disubstituted-3-butenoate (such as ethyl 2-chloro-2,3-dimethyl-3-butenoate) with a primary amine (such as benzyl amine). Methods for preparing the precursor esters are also disclosed.
N,3,4-三取代-3-咪唑-2-酮(例如N-苄基-3,4-二甲基-3-咪唑-2-酮)是通过烷基2-氯-2,3-二取代-3-丁烯酸酯(例如乙基2-氯-2,3-二甲基-3-丁烯酸酯)与一级胺(例如苄胺)反应制备而成。还公开了制备前体酯的方法。