Polycyclic N-Heterocyclic Compounds. Part 60: Reactions of 3-(2-Cyanophenyl)quinazolin-4(3H)-ones with Primary Amines
作者:Kensuke Okuda、Tsuyoshi Tagata、Setsuo Kashino、Takashi Hirota、Kenji Sasaki
DOI:10.1248/cpb.57.1296
日期:——
The reaction of 3-(2-cyanophenyl)quinazolin-4(3H)-one with various primary alkylamines gave 3-alkylquinazolin-4(3H)-ones via an addition of the nucleophile, ring opening, and ring closure (ANRORC) mechanism. This type of reaction required hydroxy group functionality in either the solvent or reagent. When hydroxylamine was used as nitrogen nucleophile, the intermediate of this reaction was isolated
3-(2-氰基苯基)喹唑啉-4(3H)-1与各种伯烷基胺的反应通过亲核试剂的添加,开环和闭环(ANRORC)机理得到3-烷基喹唑啉-4(3H)-1。 。这种类型的反应需要溶剂或试剂中的羟基官能团。当使用羟胺作为氮亲核试剂时,分离出该反应的中间体,发现是酰胺肟。当使用乙二胺作为亲核试剂时,中间体的am部分分解得到苯甲酰苯胺。