作者:Monica Dell'Acqua、Valentina Pirovano、Stefano Peroni、Giorgio Tseberlidis、Donatella Nava、Elisabetta Rossi、Giorgio Abbiati
DOI:10.1002/ejoc.201601602
日期:2017.3.17
triflate-catalyzed synthesis of 1,3-dicarbosubstituted isochromene derivatives starting from 2-alkynyl(hetero)arylaldehydes and enolizable ketones. The reaction proceeds in a cascade fashion under mild heating with complete regioselectivity. The reaction yields range from moderate to good. In some cases, the reaction gives unexpected homodimeric products. Two competitive mechanistic paths for the formation of the
在本文中,我们报告了从 2-炔基(杂)芳基醛和可烯醇化的酮开始,三氟甲磺酸银催化合成 1,3-二碳取代异色烯衍生物的第一个例子。该反应在温和加热下以级联方式进行,具有完全的区域选择性。反应产率范围从中等到良好。在某些情况下,该反应会产生出乎意料的同型二聚产物。已描述了形成所需异色烯衍生物和同二聚体产物的两种竞争机制路径。