Synthesis of 3,4-Dihydroisoquinolines by a C(sp<sup>3</sup>)H Activation/Electrocyclization Strategy: Total Synthesis of Coralydine
作者:Manon Chaumontet、Riccardo Piccardi、Olivier Baudoin
DOI:10.1002/anie.200804444
日期:2009.1
Thanks to CH activation: 3‐Aryl‐3,4‐dihydroisoquinolines (2) are synthesized from bromobenzenes (1) by a sequence comprising a C(sp3)H activation, a Curtius rearrangement, and a tandem electrocyclic ring‐opening/6π electrocyclization. This method is applied to the synthesis of various isoquinoline‐containing molecules, including the tetrahydroprotoberberine alkaloid coralydine.
多亏了CH活化:溴苯(1)通过包括C(sp 3)H活化,Curtius重排和串联电环的序列合成了3-芳基-3,4-二氢异喹啉(2)开/6π电环化。该方法适用于各种含异喹啉的分子的合成,包括四氢小ber碱生物碱珊瑚素。