The present disclosure provides compounds of formula (I) or salts thereof, wherein R1- R10 and x are defined herein; compositions containing these compounds; methods of inhibiting, reducing, or ameliorating bacterial growth on a substrate using these compound; and products such as dental care products, soaps, antibacterial products, and plastics comprise one or more compounds described herein.
Chromium-Salen Catalyzed Cross-Coupling of Phenols: Mechanism and Origin of the Selectivity
作者:Yexenia Nieves-Quinones、Thomas J. Paniak、Young Eun Lee、Sun Min Kim、Sergei Tcyrulnikov、Marisa C. Kozlowski
DOI:10.1021/jacs.9b03890
日期:2019.6.26
chemoselective phenol cross-coupling reaction catalyzed by a Cr-salen catalyst was developed. Kinetic studies showed that the oxidation of Cr(III) to Cr(V) is the rate-determining step of the reaction. In addition, experimental stoichiometric analysis showed that a high valent Cr(V) species is the active catalyst for this process. The selectivity of the reaction was found to be determined by the cross-coupling
A palladium-catalyzed intermolecular dearomative formal [4+2] annulation of phenols with propargyl electrophiles is reported, enabling substituent-controlled regiodivergent synthesis of a wide range of skeletally diverse spirocyclohexadienones with good yields. The regiodivergence could be precisely controlled by adjusting the steric hindrance of O- and N-substituents from binucleophilic substrates
Selective Oxidative Homo- and Cross-Coupling of Phenols with Aerobic Catalysts
作者:Young Eun Lee、Trung Cao、Carilyn Torruellas、Marisa C. Kozlowski
DOI:10.1021/ja500183z
日期:2014.5.14
Simple catalysts that use atom-economical oxygen as the terminal oxidant to accomplish selective ortho-ortho, ortho-para, or para-para homo-couplings of phenols are described. In addition, chromium salen catalysts have been discovered as uniquely effective in the cross-coupling of different phenols with high chemo- and regioselectivity.
BISPHENOL COMPOUNDS
申请人:THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
公开号:US20200375949A1
公开(公告)日:2020-12-03
The present disclosure provides compounds of formula (I) or salts thereof, wherein R
1
-R
10
and x are defined herein; compositions containing these compounds; methods of inhibiting, reducing, or ameliorating bacterial growth on a substrate using these compound; and products such as dental care products, soaps, antibacterial products, and plastics comprise one or more compounds described herein.