Selective Oxidative Homo- and Cross-Coupling of Phenols with Aerobic Catalysts
摘要:
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.
Selective Oxidative Homo- and Cross-Coupling of Phenols with Aerobic Catalysts
摘要:
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.
2-, 3- And 4-biphenyloxyaminoalkanes and related compounds, their preparation and uses, and pharmaceutical compositions containing them
申请人:SYNTEX (U.S.A.) INC.
公开号:EP0157652A1
公开(公告)日:1985-10-09
Compounds useful for treating inflammation, swelling and associated pain, and psoriasis, represented by the formula:
and the pharmaceutically acceptable acid addition salts thereof, wherein:
a is an integer of 0-3;
b is an integer of 0-2;
n is an integer of 3-12;
each X and each Y are independently-halo, -R1, -alkoxy, or-phenyl; and B is selected from:
and
in which
R' and R2 are independently H, alkyl or cycloalkyl;
R3 is H, alkyl or -CH2CH2OH; and
m is an integer of 3-8.
Novel compounds are those wherein n is at least 6 if both a and b are 0.
用于治疗炎症、肿胀及相关疼痛和牛皮癣的化合物,由式:及其药学上可接受的酸加成盐表示,其中:a 是 0-3 的整数;b 是 0-2 的整数;n 是 3-12 的整数;每个 X 和每个 Y 独立地是卤素、-R1、-烷氧基或苯基;B 选自:且其中 R' 和 R2 独立地是 H、烷基或环烷基;R3 是 H、烷基或-CH2CH2OH;且 m 是 3-8 的整数。 新型化合物是指如果 a 和 b 均为 0,则 n 至少为 6 的化合物。
US4792570A
申请人:——
公开号:US4792570A
公开(公告)日:1988-12-20
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.