PROBLEM TO BE SOLVED: To provide a method capable of safely and economically synthesizing 1,1-di-substituted ethylene diamine (III) and consequently enabling its industrial production.
SOLUTION: The method for producing 1,1-di-substituted ethylene diamine represented by general formula (III)(wherein R1 and R2 are each simultaneously or independently a 1-6C alkyl group, a trifluoromethyl group or a 3-10-membered cycloalkyl group formed of R1, R2and their root carbon) comprises reacting ketones represented by general formula (I) with nitromethane and ammonia to afford an intermediate represented by general formula (II) and carrying out catalytic hydrogenation reaction of the intermediate represented by general formula (II) as shown in the figure.
COPYRIGHT: (C)2006,JPO&NCIPI
要解决的问题:提供一种能够安全、经济地合成1,1-二取代乙二胺(III)的方法,从而实现其工业化生产。
解决方案:生产1,1-二取代乙二胺的方法,其通用式表示为(III)(其中R1和R2同时或独立地为1-6C烷基、三氟甲基或由R1、R2和它们的根碳形成的3-10环烷基),包括将通用式(I)表示的酮与硝基甲烷和氨反应,得到一个中间体,该中间体的通用式表示为(II),并按照图示进行中间体的催化氢化反应。
版权所有:(C)2006,JPO&NCIPI