Multicomponent Transformation of Isoindoline-1,3-diimine (=1H-Isoindole-1,3(2H)-diimine), Acetylenic Esters, and Triphenylphosphine to Novel Dihydropyrimido[2,1-a]isoindole Derivatives
作者:Robabeh Baharfar、Saadieh Mohajer
DOI:10.1002/hlca.201100257
日期:2012.1
The three‐component reaction of the zwitterions generated from dialkyl acetylenedicarboxylates (=dialkyl but‐2‐ynedioates and triphenylphosphine (Ph3P) with isoindoline‐1,3‐diimine (=1H‐isoindole‐1,3(2H)‐diimine) is described (Scheme 1). This reaction affords the corresponding special type of substituted dihydropyrimido[2,1‐a]isoindole derivatives in good yields without using any catalyst and activation
乙炔基二羧酸二烷基酯(=二烷基丁-2-炔和三苯基膦(Ph 3 P)与异吲哚啉-1,3-二亚胺(= 1 H -isoindole-1,3(2 H)- (方案1)描述了该反应,该反应以高收率得到了相应的特殊类型的取代的二氢嘧啶基[2,1- a ]异吲哚衍生物,而无需使用任何催化剂和活化方法(表)。