Chemoselective O- versus C-alkylation of substituted phenols with cyclohexene over mesoporous ZSM-5
作者:Hailian Jin、Mohd Bismillah Ansari、Sang-Eon Park
DOI:10.1016/j.apcata.2013.12.025
日期:2014.2
Chemoselective O- versus C-alkylation of substituted phenols such as phenol, p-cresol, and guaiacol with cyclohexene were investigated over various ZSM-5 catalysts with different degree of mesoporosity and external acidity such as mesoporous ZSM-5 synthesized by microwave induced assembly via electrostatic interaction between sulfonic acid, functionalized or non-functionalized ZSM-5 nanozeolites and
FURTHER STUDIES IN THE ALKYLATION OF PHENOLS AND THIOPHENOLS
作者:NG. PH. BUU-HOÏ、HENRI LE BIHAN、FERNAND BINON、NG. D. XUONG
DOI:10.1021/jo01146a024
日期:1951.6
US5654483A
申请人:——
公开号:US5654483A
公开(公告)日:1997-08-05
Catalytic activation of unstrained C(aryl)–C(aryl) bonds in 2,2′-biphenols
作者:Jun Zhu、Jianchun Wang、Guangbin Dong
DOI:10.1038/s41557-018-0157-x
日期:2019.1
install phosphinites as a recyclable directing group. Using hydrogen gas as the reductant, monophenols are obtained with a low catalyst loading and high functional group tolerance. This approach is also applied to the synthesis of 2,3,4-trisubstituted phenols. A further mechanistic study suggests that the C–C activation step is mediated by a rhodium(i) monohydride species. Finally, a preliminary study on