Copper-Catalyzed Reactions of Alkenyl Boronic Esters via Chan–Evans–Lam Coupling/Annulation Cascades: Substrate Selective Synthesis of Dihydroquinazolin-4-ones and Polysubstituted Quinolines
作者:Yuge Li、Zifeng Cao、Zhijun Wang、Liang Xu、Yu Wei
DOI:10.1021/acs.orglett.2c02522
日期:2022.9.16
nucleophiles have been established, providing new approaches for one-pot assembly of azacycles. Following the Chan–Evans–Lam C–N couplings, the cyclization processes occur via divergent pathways based on the utilized substrates, affording hydroamination product dihydroquinazolin-4-ones or aromatization product quinolines. Via this one-pot C–N coupling/annulation cascade, the target substituted azacycles can
BHASKAR RAO V.; RATNAM C. V., INDIAN J. CHEM., 1979, B18, NO 5, 409-412
作者:BHASKAR RAO V.、 RATNAM C. V.
DOI:——
日期:——
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.