Synthesis of quinazolin-4(3 H )-ones and 1,2-dihydroquinazolin-4(3 H )-ones with the aid of a low-valent titanium reagent
作者:Daqing Shi、Liangce Rong、Juxian Wang、Qiya Zhuang、Xiangshan Wang、Hongwen Hu
DOI:10.1016/s0040-4039(03)00449-0
日期:2003.4
A short and facile synthesis of a series of quinazolin-4(3H)-ones and 1,2-dihydroquinazolin-4(3H)-ones was accomplished in good yields via the novel reductive cyclization of o-nitrobenzamides and triethyl orthoformate, aldehydes or ketones promoted by TiCl4/Zn.
一系列喹唑啉-4-的短而简便合成(3 ħ) -酮和1,2-二氢喹唑啉-4(3 H ^) -酮在良好的产率通过的新颖还原性环化完成ö -nitrobenzamides和原甲酸三乙酯, TiCl 4 / Zn促进的醛或酮。