Access to Chiral Bisphenol Ligands (BPOL) through Desymmetrizing Asymmetric Ortho-Selective Halogenation
作者:Xiaodong Xiong、Tianyu Zheng、Xinyan Wang、Ying-Lung Steve Tse、Ying-Yeung Yeung
DOI:10.1016/j.chempr.2020.01.009
日期:2020.4
Privileged chiral catalyst scaffolds are highly useful in chemical synthesis such as drug preparation. Substituted phenol ligands are among the most frequently used scaffolds. However, the preparation of chiral phenol ligands commonly involves tedious synthetic procedures. Herein, we describe a facile strategy to prepare potent chiral bisphenols (BPOLs) through the desymmetrizing asymmetric ortho-halogenation
特权手性催化剂支架在化学合成(例如药物制备)中非常有用。取代的酚配体是最常用的支架之一。但是,手性酚配体的制备通常涉及繁琐的合成程序。本文中,我们描述了一种通过去对称不对称邻位卤化制备有效手性双酚(BPOL)的简便策略。为了阐明机械原理,进行了理论和实验研究。操作BPOL产品中的卤素手柄可产生不对称的手性BPOL配体,该配体是潜在的优先催化剂支架,已应用于其他不对称催化反应中。