Tandem allylic amination/ring-opening/oxa-Michael addition reactions of chromone-derived Morita–Baylis–Hillman acetates with amines
作者:Chen Wu、Hao Zeng、Li Liu、Dong Wang、Yongjun Chen
DOI:10.1016/j.tet.2010.11.089
日期:2011.2
The reaction of chromone-derived Morita–Baylis–Hillman acetates with amines was developed via tandem allylic amination/chromone ring-opening/oxa-Michael addition to provide 2-substituted-3-aminomethy-lene-chromans in convenient and efficient way, and subsequent applied in the synthesis of benzopyranylpyrimidine compounds. Various amines exhibited different reactivities depending on their molecular