Vanilline Alkanoates in the Synthesis of Hexahydrobenzacridine and Octahydroxanthene Derivatives
作者:N. G. Kozlov、L. I. Basalaeva
DOI:10.1007/s11176-005-0282-2
日期:2005.4
Cascade heterocyclization of 1,3-cyclohexanedione and dimedone with 2-naphthylamine and vanilline esters gave derivatives of 2-methoxy-4-(alkyl-11-oxo-7,8,9,10,11,12-hexahydrobenz[a]acridin-12-yl)- and 2-methoxy-4-(alkyl-1,8-dioxo-2,3,4,5,6,7,8,9-octahydro-1H-xanthen-9-yl)phenyl esters of aliphatic (C1– C4 ) carboxylic acids.
1,3-环己二酮与二甲基双酮在2-萘胺和香草醛酯的作用下,发生级联杂环化反应,生成了2-甲氧基-4-(烷基-11-氧代-7,8,9,10,11,12-六氢苯并[a]吖啶-12-基)和2-甲氧基-4-(烷基-1,8-二氧代-2,3,4,5,6,7,8,9-八氢-1H-咕吨-9-基)苯酯的脂肪族(C1-C4)羧酸衍生物。