Synthesis of quaternary stereogenic centres via stereoselective intermolecular Friedel–Crafts reactions
作者:Jennifer C. Ball、Robert Gleave、Simon Jones
DOI:10.1039/c1ob05129f
日期:——
Highly stereoselective Friedel–Crafts reactions have been performed using a chiral anthracene template to control the selectivity of the reaction. In the case of additions to fully substituted N-acyliminium ions, competitive elimination and condensation reactions were observed. Retro-Diels–Alder reaction of one of the reaction products led to a precursor that could be used for the construction of pyroglutamic
使用手性蒽模板进行了高度立体选择性的Friedel-Crafts反应,以控制反应的选择性。在添加到完全取代的N-酰基亚胺离子的情况下,观察到竞争性消除和缩合反应。其中一种反应产物的Retro-Diels-Alder反应产生了一种前体,可用于构建带有季位立体中心的焦谷氨酸。