项目名称: Pictet–Spengler类反应机理的理论研究和新反应设计
项目编号: No.21302209
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 郑超
作者单位: 中国科学院上海有机化学研究所
项目金额: 25万元
中文摘要: Pictet-Spengler反应是实现吲哚2-位官能团化的一类重要方法。本项目采用计算化学方法研究这类反应的机理,特别是基于吲哚、吡咯、苯酚骨架的螺环去芳构化中间体发生立体选择性迁移的反应历程。探索迁移基团性质、螺环大小、外加酸强度、底物中其他手性中心构型等因素对该反应机理和立体化学结果的影响规律。利用理论研究得到的结论帮助设计和发展新型的高选择性Pictet-Spengler类反应。
中文关键词: Pictet-Spengler反应;螺环假吲哚化合物;迁移反应;DFT计算;
英文摘要: Pictet-Spengler reaction is among the most powerful methods on functionalization at C2 position of indoles. This project focuses on theoretical investigation into the mechanism of this reaction, with a special emphasis on the reaction profile of the stereoselective migration of dearomatized spiro cyclic intermediates derived from indole, pyrrole and phenol scaffolds. The influences of the properties of the migratory groups, the size of the spiro ring, the acidity of the catalyst, the configurations of the other chiral centers in the substrate, etc. to the reaction mechanism as well as the stereochemistry outcome will be studied. This theoretical research is beneficial for the design and development of novel highly selective Pictet-Spengler-type reactions.
英文关键词: Pictet-Spengler reaction;spiroindolenine;migration reaction;DFT calculation;