A New Synthesis of Methyl 7H-Dibenz[b,g]oxocin-6-carboxylates from Morita-Baylis-Hillman Adducts of 2-Phenoxybenzaldehydes
作者:Kee-Jung Lee、Sang-Hyun Ahn、Seung Jang、Eun-Gu Han
DOI:10.1055/s-0030-1258392
日期:2011.2
A new synthetic method for methyl 7H-dibenz[b,g]oxocin-6-carboxylates by Friedel-Crafts reaction of readily available bromides of Morita-Baylis-Hillman adducts with aluminum chloride has been developed.
tert-Butoxide mediated cascade desulfonylation/arylation/hydrolysis of cyclic sulfonyimines using diaryliodonium salts: synthesis of diaryl ether derivatives bearing a 2-aldehyde group
作者:Xiaofei Qian、Jianwei Han、Limin Wang
DOI:10.1039/c6ra19313g
日期:——
Cascades of cyclic sulfonyimines mediated by tBuOK with diaryliodonium salts has been developed, giving the diaryl ethers in good yields. Furthermore, bulky ortho-substituted diaryl ethers with an aldehyde group can be obtained easily in comparision with metal-catalyzed protocols.
Nickel-Catalyzed Etherification of Phenols and Aryl Halides through Visible-Light-Induced Energy Transfer
作者:Da-Liang Zhu、Shan Jiang、Qi Wu、Hao Wang、Hai-Yan Li、Hong-Xi Li
DOI:10.1021/acs.orglett.1c03066
日期:2021.11.5
arylhalides, the ability of such a Ni-catalyzed transformation employing phenols to diaryl ethers is unsuccessful due to phenolates with much lower reduction potentials, which suppress the oxidation of nickel(II) intermediates into requisite Ni(III) species. We herein report visible-light-initiated, nickel-catalyzed O-arylation of phenols with arylhalides using t-BuNH(i-Pr) as the base and thioxanthen-9-one
尽管在链烷醇和芳基卤化物的镍催化醚化方面取得了一些进展,但由于苯酚盐的还原电位低得多,从而抑制了镍 (II) 中间体氧化成必需的化合物,因此这种使用苯酚的镍催化转化为二芳基醚的能力并不成功Ni(III) 物种。我们在此报告了在可见光下使用t- BuNH( i- Pr) 作为碱和thioxanthen -9-one 作为光敏剂的可见光引发的镍催化苯酚与芳基卤化物的O-芳基化。这种光电耦合表现出广泛的基板范围。
BICYCLO [2.2.2] ACID GPR120 MODULATORS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20160039780A1
公开(公告)日:2016-02-11
The present invention provides compounds of Formula (I) or a stereoisomer, or a pharmaceutically acceptable salt thereof, wherein all of the variables are as defined herein. These compounds are GPR120 G protein-coupled receptor modulators which may be used as medicaments.