申请人:Peterson John R.
公开号:US08431699B2
公开(公告)日:2013-04-30
There is provided a method for manufacture of 2-oxoimidazolidines of Formula I comprising one or more of the steps of converting an amine to an acylation agent, condensation of the acylation agent with a bi-functional compound of structure L-C(R4)(R5)—C(R2)(R3)—NHR1, wherein L is a leaving group, and ring closure of the resulting urea. In this manner, certain 2-oxoimidazolidines may be manufactured that are useful intermediates for the production of Pramiconazole and structurally related compounds.
提供了一种制备式I的2-氧代咪唑啉的方法,包括将胺转化为酰化试剂的一步或多步,将酰化试剂与具有结构L-C(R4)(R5)-C(R2)(R3)-NHR1的双官能化合物缩合,其中L是离去基团,以及环闭合所得尿素。通过这种方法,可以制备出某些有用的2-氧代咪唑啉中间体,用于生产Pramiconazole和结构相关的化合物。