Catalyst-free synthesis of tetrahydropyrimidines <i>via</i> formal [3+3]-cycloaddition of imines with 1,3,5-hexahydro-1,3,5-triazines
作者:Long Chen、Kai Liu、Jiangtao Sun
DOI:10.1039/c7ra11973a
日期:——
tetrahydropyrimidines from readily available starting materials has been developed. This process features an unprecedented intermolecular formal [3+3]-annulation of imines and 1,3,5-hexahydro-1,3,5-triazines under catalyst-free conditions. Importantly, differing from previous transformations, the 1,3,5-triazines are firstly utilized as formal 1,3-dipoles in cycloadditionreactions.