A Convenient Solid-Phase Synthesis of Coumarins by TMSOTf-Catalyzed Intramolecular Seleno-Arylation of Tethered Alkenes
作者:E. Tang、Wen Li、Zhangyong Gao
DOI:10.1055/s-0031-1290618
日期:2012.4
performed using polystyrene-supported succinimidyl selenide as the selenium source. This catalytic process provides an efficient method for the regioselective synthesis of dihydrocoumarins possessing a seleno functionality, followed by syn elimination of selenoxides to provide coumarins in good yields and purities. Suzuki cross-coupling reaction of the resin-bound bromodihydrocoumarin was also performed
使用聚苯乙烯负载的琥珀酰亚胺亚硒酸酯作为硒源,进行TMSOTf催化的链状烯烃分子内硒基芳基化反应。该催化方法为区域选择性合成具有硒代功能的二氢香豆素提供了一种有效的方法,随后同步消除亚硒酸盐以提供高收率和纯度的香豆素。还进行了树脂结合的溴代二氢香豆素的Suzuki交叉偶联反应,并且通过随后裂解硒连接基获得联苯香豆素。 硒-环化-TMSOTf-香豆素-固相合成-碳-碳键形成-催化