Synthesis of 4-(Dimethylamino)quinazoline via Direct Amination of Quinazolin-4(3H)-one Using N,N-Dimethylformamide as a Nitrogen Source at Room Temperature
作者:Yiyuan Peng、Xin Chen、Qin Yang、Yirong Zhou、Zhihong Deng、Xuechun Mao
DOI:10.1055/s-0034-1380550
日期:——
that affords the corresponding 4-(dimethylamino)quinazolines in high yields. This transformation proceeds through efficient 4-toluenesulfonyl chloride mediated C–OH bond activation at room temperature. An efficient direct amination of quinazolin-4(3H)-ones using N,N-dimethylformamide as a nitrogen source is described that affords the corresponding 4-(dimethylamino)quinazolines in high yields. This
Ruthenium-catalyzed regioselective oxidative cross-coupling/annulations of quinazolones with alkynes were successfully developed for direct access to fused polycyclic heteroarenes. The transformation proceeded well with a broad substrate scope under mild conditions to achieve moderate to high yields.