Iridium-catalysed direct sulfamidation of quinazolinones
作者:Yadong Feng、Yudong Li、Yunliang Yu、Lianhui Wang、Xiuling Cui
DOI:10.1039/c8ra00524a
日期:——
An Ir-catalysed direct sulfamidation of quinazolinones has been achieved to construct a series of ortho-diamided quinazolinones in excellent yields, and nitrogen was released as the sole byproduct.
已实现对喹唑酮的直接磺胺化反应,以构建一系列产率极高的邻二酰胺基喹唑酮,并且氮作为唯一副产物释放。
Iron nitrate/TEMPO-catalyzed aerobic oxidative synthesis of quinazolinones from alcohols and 2-aminobenzamides with air as the oxidant
作者:Yongke Hu、Lei Chen、Bindong Li
DOI:10.1039/c6ra12164k
日期:——
A highly efficient, Iron nitrate/TEMPO-catalyzed approach for the synthesis of quinazolinones has been achieved via a one-pot, tandem aerobic oxidative cyclization of primary alcohols with 2-aminobenzamides. This practical reaction tolerates...
Bismuth-catalyzed synthesis of 2-substituted quinazolinones
作者:Sandeep R. Vemula、Dinesh Kumar、Gregory R. Cook
DOI:10.1016/j.tetlet.2018.09.014
日期:2018.10
bismuth-catalyzed oxidative condensation of aldehydes with 2-aminobenzamide under aerobic conditions is reported using ethanol as the solvent. Good to excellent isolated yields (68–95%) of the corresponding 2-substituted quinazolinones were obtained under mild reaction conditions with excellent functional group tolerance. The quinazolinones were further functionalized to afford N-allylated quinazolinones, 2-aminopyridine
Ir-catalyzed regiospecific mono-sulfamidation of arylquinazolinones
作者:Yadong Feng、Zhenyue Zhang、Qi Fu、Qiuhong Yao、Huabin Huang、Jinhai Shen、Xiuling Cui
DOI:10.1016/j.cclet.2019.05.013
日期:2020.1
Abstract An Ir-catalyzed selective mono-sulfamidation of 2-arylquinazolinones has been achieved with a low catalyst loading under mild conditions. A series of regioselective mono-sulfamided 2-arylquinazolinones were obtained in up to 90% yields. Compared with our previous work of constructing di-sulfamidated 2-arylquinazolinones, the mono-sulfamided products could be obtained selectively by changing