Selective Rhodium-Catalyzed Hydroformylation of Terminal Arylalkynes and Conjugated Enynes to (Poly)enals Enabled by a π-Acceptor Biphosphoramidite Ligand
Intramolecular Crossed [2+2] Photocycloaddition through Visible Light-Induced Energy Transfer
作者:Jiannan Zhao、Jonathan L. Brosmer、Qingxuan Tang、Zhongyue Yang、K. N. Houk、Paula L. Diaconescu、Ohyun Kwon
DOI:10.1021/jacs.7b05277
日期:2017.7.26
Herein, we present the intramolecular [2+2] cycloadditions of dienones promoted through sensitization, using a polypyridyl iridium(III) catalyst, to form bridged cyclobutanes. In contrast to previous examples of straight [2+2] cycloadditions, these efficient crossed additions were achieved under irradiation with visible light. The reactions delivered desired bridged benzobicycloheptanone products with
Process for preparing pyridine-2,3- dicarboxylic acid compounds
申请人:Daiso Co., Ltd.
公开号:EP0299362B1
公开(公告)日:1991-12-04
US4948896A
申请人:——
公开号:US4948896A
公开(公告)日:1990-08-14
[EN] DIPHENYLPYRIDINE DERIVATIVES, THE PREPARATION THEREOF, AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAID DERIVATIVES<br/>[FR] DERIVES DE DIPHENYLPYRIDINE, LEUR PREPARATION, LES COMPOSITIONS PHARMACEUTIQUES EN CONTENANT
申请人:SANOFI SYNTHELABO
公开号:WO2003084930A1
公开(公告)日:2003-10-16
L'invention est relative à des dérivés de diphénylpyridine de formule: (I) ainsi qu'à leur préparation et aux compositions pharmaceutiques les contenant. Ces composés présentent une activité antagoniste des récepteurs CB1 aux cannabinoïdes.
Selective Rhodium-Catalyzed Hydroformylation of Terminal Arylalkynes and Conjugated Enynes to (Poly)enals Enabled by a π-Acceptor Biphosphoramidite Ligand