Biaryl Synthesis via Decarboxylative Pd-Catalyzed Reactions of Arenecarboxylic Acids and Diaryliodonium Triflates
作者:Jean-Michel Becht、Claude Le Drian
DOI:10.1021/ol8011293
日期:2008.7.17
A novel simple and efficientsynthesis of biaryls via a Pd-catalyzed decarboxylative cross-coupling reaction of arenecarboxylic acids and diaryliodonium triflates is described. The PdCl2/DPEphos catalytic system in the presence of Ag2CO3 in DMSO was found to be the most efficient. Various biaryls, including sterically hindered biaryls, were synthesized with yields ranging from 37 to 85%.
Stille Cross-Coupling Reactions of Aryl Mesylates and Tosylates Using a Biarylphosphine Based Catalyst System
作者:Stephen L. Buchwald、John R. Naber、Brett P. Fors、Xiaoxing Wu、Jonathon T. Gunn
DOI:10.3987/com-09-s(s)105
日期:——
A catalystsystem for the Stillecross-couplingreactions of aryl mesylates and tosylates is reported. Using the combination of Pd(OAc)2, XPhos, and CsF in t-BuOH an array of aryl and heteroaryl sulfonates were successfully employed in these reactions. Morever, heteroarylstannanes, such as furyl, thiophenyl, and N-methylpyrrole, which are often prone to decomposition, were efficiently coupled under
Abstract A Pd-catalyzed decarboxylativecoupling of substituted benzoic acids with phenylboronic acid has been developed. Under the optimized conditions, a variety of substituted benzoic acids were found to undergo decarboxylativecoupling with various phenylboronic acids to give the desired unsymmetrical biaryls in good yields. [Supplementary materials are available for this article. Go to the publisher's
Novel 1,4-benzodiazepine-2,5-diones with therapeutic properties
申请人:Glick D. Gary
公开号:US20070111994A1
公开(公告)日:2007-05-17
The present invention relates to novel chemical compounds, methods for their discovery, and their therapeutic use. In particular, the present invention provides novel 1,4-benzodiazepine-2,5-dione compounds, and methods of using novel 1,4-benzodiazepine-2,5-dione compounds as therapeutic agents to treat a number of conditions associated with the faulty regulation of the processes of programmed cell death, autoimmunity, inflammation, hyperproliferation, and the like.
Methods and compositions for treating diseases and conditions associated with mitochondrial function
申请人:Glick Gary D.
公开号:US20090275099A1
公开(公告)日:2009-11-05
The present invention relates to chemical compounds, methods for their discovery, and their therapeutic use. In particular, the present invention provides compounds as therapeutic agents to treat a number of conditions associated with the faulty regulation of the processes of programmed cell death, autoimmunity, inflammation, hyperproliferation, mitochondrial F
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ATP hydrolase associated disorders, and the like.