A new flexible strategy for the synthesis of gem-difluoro-bisarylic derivatives and heterocyclic analogues
作者:Ali Khalaf、Danielle Grée、Hassan Abdallah、Nada Jaber、Ali Hachem、René Grée
DOI:10.1016/j.tet.2011.03.073
日期:2011.5
designed for the preparation of gem-difluoro-bisarylic derivatives. It starts from easily accessible and reactive gem-difluoro-propargylic intermediates and elaborates the aromatic rings by a Diels–Alder-aromatization sequence. Heterocyclic systems can be also obtained by 1,3 dipolar cycloadditions, affording mixed aromatic/heteroaromatic derivatives with CF2 as a linker. Since this motif is a bioisostere
设计了一种新的制备宝石-二氟-二芳基衍生物的策略。它从容易获得的反应性宝石-二氟-炔丙基中间体开始,并通过狄尔斯-阿尔德-芳香化序列精制芳环。杂环体系也可以通过1,3偶极环加成获得,从而得到以CF 2为连接基的混合的芳族/杂芳族衍生物。由于该基序是O和CO的生物等排体,因此可以使用相应的二元支架制备生物活性天然产物和/或药物的氟化类似物的化学文库。