Regio- and Stereoselective C-2 and C-3 Cleavage of 2-(1-Aminoalkyl)aziridines with Alcohols, Carboxylic Acids, and Sodium Iodide
作者:José M. Concellón、Estela Riego、José Ramón Suárez
DOI:10.1021/jo0350514
日期:2003.11.1
aziridines 1 using several nucleophiles, such as alcohols, carboxylic acids, and sodium iodide, is described. Depending on the nucleophile used, aziridines 1 are cleaved at C-3 or C-2 with total regio- and stereoselectivity, affording chiral 2-alkoxy-1,3-diamines 2 with alcohols, or O-acylated-1-hydroxy-2,3-diamines 6 with carboxylic acids in moderate or high yield. In the case of the aziridines derived
描述了使用几种亲核试剂,例如醇,羧酸和碘化钠,对未活化的氮丙啶1的开环。取决于所使用的亲核试剂,氮丙啶1在C-3或C-2处具有总的区域和立体选择性,从而获得带有醇或O-酰化的1-羟基-2的手性2-烷氧基-1,3-二胺2 ,3-二胺6与羧酸的合成反应具有中等或高收率。在衍生自苯丙氨酸的氮丙啶的情况下,用NaI处理得到反式-4-苯基丁-3-en-1,2-二胺9,生成具有总非对映选择性的烯烃。已经提出了解释这些反应的机制。