A site-selective and stereospecific cascade Suzuki–Miyaura annulation of alkyl 1,2-bisboronic esters and 2,2′-dihalo 1,1′-biaryls
作者:Suzanne Willems、Georgios Toupalas、Julia C. Reisenbauer、Bill Morandi
DOI:10.1039/d1cc00648g
日期:——
A cascade Suzuki–Miyaura cross-coupling giving rise to 9,10-dihydrophenanthrenes has been developed. Using biaryls with unsymmetrical substitution-pattern full site-selectivity was observed. Furthermore, this cross-coupling of an alkyl 1,2-bisboronic pinacol ester proceeds through the challenging coupling of a secondary boronate with complete stereoretention.
已开发出可产生9,10-二氢菲的级联铃木-宫浦交叉偶联剂。使用具有不对称取代模式的联芳基,观察到全位点选择性。此外,烷基1,2-双硼烷频哪醇酯的这种交叉偶联通过具有完整立体保留的仲硼酸酯的挑战性偶联而进行。