作者:Fedor�I. Zubkov、Eugenia�V. Nikitina、Vladimir�V. Kouznetsov、Luz�Dary�Avellaneda Duarte
DOI:10.1002/ejoc.200400356
日期:2004.12
alkylation of the ortho-alkyl group in the N-arylamino moiety of various N-(1-allylcycloalkyl)-N-arylamines resulting in alkyl-substituted 3′,4′-dihydro-1′H-spiro[cycloalkane-1,2′-quinolines] is described. The mechanistic details of this intramolecular Friedel−Crafts alkylation by an alkene moiety can be explained by an intramolecular alkylation with ipso substitution of alkyl groups and their 1,2-rearrangement
酸介导的分子内 Friedel-Crafts 分子内烯烃烷基化各种 N-(1-烯丙基环烷基)-N-芳基胺的 N-芳基氨基部分中的邻-烷基,产生烷基取代的 3',4'-二氢-1描述了'H-螺[环烷烃-1,2'-喹啉]。这种由烯烃部分引起的分子内 Friedel-Crafts 烷基化的机理细节可以通过具有烷基同位取代及其 1,2-重排的分子内烷基化来解释。确定了该反应的范围和限制。作为所提出机制的确凿证据,分离并表征了以前未知的有趣副产物二螺[quino[6,7-f]quinoline-3,1':9,1''-bis(cycloalkanes)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)