An efficient [3+2] cycloaddition for the synthesis of substituted pyrazolo[1,5-c]quinazolines

作者:Wang, Tao; Shao, Ailong; Feng, Haiyan; Yang, Shuwu; Gao, Meng*; Tian, Jun; Lei, Aiwen
来源:Tetrahedron, 2015, 71(26-27): 4473-4477.
DOI:10.1016/j.tet.2015.03.019

摘要

A simple and efficient [3+2] cycloaddition reaction between N-iminoquinazolinium ylide and nitro-olefins was developed. From a synthetic point of view, this protocol represents an efficient way to pyrazolo[1,5-c]quinazolines derivatives.