On the synthesis and isolation of chlorocarbazoles obtained by chlorination of<i>N</i>-substituted carbazoles
作者:Sergio M. Bonesi、Rosa Erra-Balsells
DOI:10.1002/jhet.5570340328
日期:1997.5
4b, 5a, 5b, 5c, 5d and 5e. Some of them are described for the first time. By using semiempirical PM3 method theoretical substituent effects on the chlorinating reaction are calculated. A chlorination mechanism of carbazoles and N-substituted carbazoles are compared.
合成了N-甲基咔唑(1),N-苯基咔唑(2),N-乙酰咔唑(3),N-苯甲酰基咔唑(4)和2-甲氧基-N-甲基咔唑的氯衍生物。它们是化合物1a,1b,1c,1d,1e,2a,2b,3a,3b,3c,3d,4a,4b,5a,5b,5c,5d和5e。其中一些是第一次描述。通过使用半经验PM3方法,计算了理论上的取代基对氯化反应的影响。比较了咔唑和N-取代咔唑的氯化机理。