Catalytic activation of unstrained C(aryl)-C(aryl) bonds in 2,2'-biphenols.
Catalytic activation of unstrained C(aryl)-C(aryl) bonds in 2,2'-biphenols.
复制标题
DOI:
10.1038/s41557-018-0157-x
复制
发表时间:
2019-01
期刊:
影响因子:
21.8
通讯作者:
Dong G
中科院分区:
文献类型:
--
作者:
Zhu J;Wang J;Dong G
Transition-metal catalysis has emerged as an important means for C-C activation allowing mild and selective transformations. However, the current scope of C-C bonds that can be activated is primarily restricted to either highly strained systems or more polarized C-C bonds. In contrast, catalytic activation of nonpolar and unstrained C-C moieties remains an unmet challenge. Here we report a general approach for catalytic activation of the unstrained C(aryl)-C(aryl) bonds in 2,2’-biphenols. The key is utilizing the phenol moiety as a handle to install phosphinites as a recyclable directing group. Using hydrogen gas as the reductant, mono-phenols are obtained with a low catalyst loading and high functional group tolerance. This approach has also been applied to the synthesis of 2,3,4-trisubstituted phenols. Further mechanistic study suggests that the C-C activation step is mediated by a rhodium(I) mono-hydride species. Finally, a preliminary study on breaking the inert biphenolic moieties in lignin models is illustrated.
登录
查看更多内容
影响因子:
15
作者:
LEWIS, LN;SMITH, JF
通讯作者:
SMITH, JF
DOI:
10.1002/anie.201510351
发表时间:
2016-07-11
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Rinaldi R;Jastrzebski R;Clough MT;Ralph J;Kennema M;Bruijnincx PC;Weckhuysen BM
通讯作者:
Weckhuysen BM
影响因子:
4.9
作者:
Kar, Anirban;Mangu, Naveenkumar;Tse, Man Kin
通讯作者:
Tse, Man Kin
影响因子:
2.9
作者:
Grein, F
通讯作者:
Grein, F
影响因子:
15
作者:
Rahimi, Alireza;Azarpira, Ali;Stahl, Shannon S.
通讯作者:
Stahl, Shannon S.