Enzymatic Desymmetrization of Prochiral 2-Substituted-1,3-Diamines: Preparation of Valuable Nitrogenated Compounds
作者:Nicolás Ríos-Lombardía、Eduardo Busto、Eduardo García-Urdiales、Vicente Gotor-Fernández、Vicente Gotor
DOI:10.1021/jo8025912
日期:2009.3.20
A wide range of prochiral 1,3-diamines were first efficiently synthesized and subsequently desymmetrized by using lipase from Pseudomonas cepacia as catalyst and diallyl carbonate as alkoxycarbonylating agent. In all cases, the amino carbamates of R-configuration were recovered. Final selective cleavage of the N-allyloxycarbonyl moiety was carried out under mild reaction conditions, which demonstrates
首先有效地合成了多种前手性的1,3-二胺,然后使用洋葱假单胞菌的脂肪酶作为催化剂,碳酸二烯丙酯作为烷氧基羰基化剂进行了脱对称。在所有情况下,都回收了R-构型的氨基氨基甲酸酯。N-烯丙氧羰基部分的最终选择性裂解是在温和的反应条件下进行的,这表明该化学酶促途径具有很高的通用性和潜力,可作为相关旋光性氮化衍生物合成中的中间体来源。