Protecting-group-free palladium-catalyzed hydroxylation, C-O and C-N coupling of chiral 6-bromo- and 6,6’-dibromo- 1,1’-binaphthols
作者:Junyu Dong、Tianbin Li、Chuan Dai、Wen Weng、Xinghua Xue、Yuyu Zhang、Qingle Zeng
DOI:10.1002/aoc.2982
日期:2013.5
synthesis of chiral 6‐substituted and 6,6’‐disubstituted binols (binol = 1,1’‐bi‐2‐naphthol) by palladium‐catalyzed hydroxylation, C–N and C–O coupling of chiral 6‐bromo‐ and 6,6’ ‐dibromo‐1,1’‐binaphthols is developed. The protecting group free palladium‐catalyzed hydroxylation, C–O and C–N cross‐coupling protocol affords a straightforward and general method for the synthesis of chiral 6‐substituted
一种简单,无保护基团的方案,可通过钯催化的羟基化,CN和C合成手性6-取代的和6,6'-双取代的二元醇(比诺尔= 1,1'-bi-2-萘酚)开发了手性6-溴和6,6'-二溴-1,1'-联萘酚的-O偶联。不含保护基的钯催化羟基化,C-O和C-N交叉偶联方案为合成手性6-取代和6,6'-二取代的二元醇提供了一种简单,通用的方法,收率高,避免了繁琐的程序引入和除去保护基的过程。版权所有©2013 John Wiley&Sons,Ltd.