Divergent reaction pathways for phenol arylation by arynes: synthesis of helicenes and 2-arylphenols
作者:Thanh Truong、Olafs Daugulis
DOI:10.1039/c2sc21288a
日期:——
Two reactions of phenols with arynes have been developed. If LiTMP base is employed, arynes generated from aryl chlorides react with phenols to form helicenes. o-Arylation of phenols can be achieved by employing tBuONa base in the presence of AgOAc. Direct arylation of binol was achieved leading to the shortest pathway to o,o′-diarylbinols.
Ru<sup>II</sup>-Catalyzed Vinylative Dearomatization of Naphthols via a C(sp<sup>2</sup>)–H Bond Activation Approach
作者:Jiang Nan、Zhijun Zuo、Lei Luo、Lu Bai、Huayu Zheng、Yini Yuan、Jingjing Liu、Xinjun Luan、Yaoyu Wang
DOI:10.1021/ja410060e
日期:2013.11.20
by sequential cleavage of the C(sp(2))-Hbond, migratory insertion of the alkyne, and dearomatization of the naphthyl ring. Various spirocyclic molecules bearing an all-carbon quaternary stereocenter could be obtained by this novel method with good yields and excellent regioselectivity, and the current process tolerates a variety of synthetically important functional groups.