Synthesis of Protected (1-Phenyl-1<i>H</i>-pyrrol-2-yl)-alkane-1-amines from Phenylnitroso Diels–Alder Adducts with 1,2-Dihydropyridines
作者:Francesco Berti、Valeria Di Bussolo、Mauro Pineschi
DOI:10.1021/jo4009996
日期:2013.7.19
The reductive cleavage of nitrosobenzene-derived cycloadducts with appropriately protected 1,2-dihydropyridines allows a novel and simple obtainment of substituted N-[1-(1-phenyl-1H-pyrrol-2-yl)alkylamides. This synthesis can also be carried out in a very simple, mild, and practical one-pot procedure without isolation of the corresponding nitrosobenzene cycloadduct by means of catalytic amounts of
用适当保护的1,2-二氢吡啶对亚硝基苯衍生的环加合物进行还原性裂解,可以新颖,简单地获得取代的N- [1-(1-苯基-1 H-吡咯-2-基)烷基酰胺。该合成还可以以非常简单,温和和实用的一锅法进行,而无需借助催化量的CuCl分离相应的亚硝基苯环加合物。