Convenient and efficient synthesis of novel 11<i>H</i>-benzo[5,6][1,4]thiazino[3,4-<i>a</i>]isoindol-11-ones derived from 2-bromo-(2/3-substitutedphenyl)-1<i>H</i>-indene-1,3(2<i>H</i>)-diones
作者:Satbir Mor、Suchita Sindhu
DOI:10.1039/c9ra02403d
日期:——
unprecedented formation of 11H-benzo[5,6][1,4]thiazino[3,4-a]isoindol-11-ones through a one-step reaction of differently substituted 2-aminobenzenethiols and 2-bromo-(2/3-substitutedphenyl)-1H-indene-1,3(2H)-diones in freshly dried ethanol under reflux conditions has been investigated. This unique transformation probably occurs through an initial nucleophilic substitution followed by ring opening and subsequent
通过不同取代的2-氨基苯硫醇和2-溴-(2的一步反应,前所未有地形成11 H-苯并[5,6][1,4]噻嗪并[3,4- a ]异吲哚-11-酮已经研究了在回流条件下在新鲜干燥的乙醇中的((3-取代的苯基) -1H-茚-1,3( 2H )-二酮。这种独特的转化可能是通过最初的亲核取代、随后的开环和随后的分子内环化发生的。通过 FTIR、 1 H NMR、 13 C NMR、HRMS 和 X 射线晶体分析确定了所有合成的苯并[1,4]噻嗪异吲哚啉酮的结构。这种方法简单方便,具有原子经济性高、反应时间短和操作简单等优点。