作者:Zoia V. Voitenko、Oleksandr I. Halaev、Volodymyr P. Samoylenko、Sergey V. Kolotilov、Christine Lepetit、Bruno Donnadieu、Remi Chauvin
DOI:10.1016/j.tet.2010.08.013
日期:2010.10
Base- and acid-catalyzed nucleophilic addition of 11H-isoindolo[2,1-a]quinazoline-5-one to aromatic aldehydes and maleimides was investigated. The aldol adducts and condensation products were obtained stereoselectively. Main diastereomers of the Michael adducts were isolated in 74–89% yield, and converted by N-methylation to new stable α-substituted isoindole derivatives, for which 6-methylisoindolo[2
研究了11 H-异吲哚并[2,1 - a ]喹唑啉-5-酮在芳香醛和马来酰亚胺上的碱和酸催化亲核加成反应。立体选择性地获得了羟醛加合物和缩合产物。分离迈克尔加合物的主要非对映异构体,产率为74–89%,并通过N-甲基化转化为新的稳定的α-取代的异吲哚衍生物,其中6-甲基异吲哚并[2,1- a ]]喹唑啉-5-酮为未取代的参考。在潮湿的CDCl 3溶液中监测后者的稳定性,并通过X射线衍射分析将其中一种氧化水解产物表征为相应的N-芳基邻苯二甲酰亚胺。还用炔属迈克尔受体研究了未取代的6-甲基异吲哚并[2,1- a ]]喹唑啉-5-酮的反应性。获得了具有原始拉-推-拉结构的完全共轭的异吲哚衍生物。在理论的DFT水平上研究了二苯甲酰基乙炔加合物的构象和分子轨道。其静态二次hyperpolarizabilty β 0也是在ZINDO水平计算。