Copper-catalyzed tandem reaction directed toward synthesis of 2,2-disubstituted quinazolinones from vinyl halides and 2-aminobenzamides
作者:Kotaro Yamaguchi、Shin-ichi Kawaguchi、Motohiro Sonoda、Shinji Tanimori、Akiya Ogawa
DOI:10.1016/j.tetlet.2017.09.001
日期:2017.10
A copper-catalyzed tandem reaction with vinyl halides and 2-aminobenzamides has been developed. In this synthetic route, cross-coupling reaction of the amide moiety with vinyl halides initially progresses, followed by hydroamination, to provide 2,2-disubstituted quinazolinone derivatives. Moreover, the tandem reaction is used in a one-pot synthesis beginning with alkyne hydroiodination by PPh3, I2
已经开发了一种与卤乙烯和2-氨基苯甲酰胺进行铜催化的串联反应。在该合成途径中,酰胺部分与乙烯基卤化物的交叉偶联反应首先进行,然后进行加氢胺化,以提供2,2-二取代的喹唑啉酮衍生物。此外,串联反应用于从PPh 3,I 2和H 2 O进行炔烃加氢碘化开始的一锅合成中。