Evaluation of Electron-Deficient Phosphine Ligands for Direct Arylation of Heterocycles
作者:Olivier René、Keith Fagnou
DOI:10.1002/adsc.201000397
日期:2010.9.10
New electron‐deficient biarylphosphine ligands were studied and proved to be efficient for the directarylation of heteroarenes with aryl iodides. The ability of a more electron‐deficient palladium centre to accelerate the arylation of heterocycles that remained unreactive with aryl iodides in the past has been validated and these heteroarenes can now be smoothly reacted in the presence of a new electrophilic
Highly electron-poor Buchwald-type ligand: application for Pd-catalysed direct arylation of thiophene derivatives and theoretical consideration of the secondary Pd<sup>0</sup>–arene interaction
作者:Toshinobu Korenaga、Ryo Sasaki、Kazuaki Shimada
DOI:10.1039/c5dt01991e
日期:——
Highly electron-poor SPhos ligands stabilised the Pd complex by secondary Pd0–arene interaction.
高度电子贫化的SPhos配体通过次要的Pd0-芳烃相互作用稳定了Pd配合物。
Efficient Bulky Phosphines for the Selective Telomerization of 1,3-Butadiene with Methanol
作者:Mathieu J.-L. Tschan、Eduardo J. García-Suárez、Zoraida Freixa、Hélène Launay、Henk Hagen、Jordi Benet-Buchholz、Piet W. N. M. van Leeuwen
DOI:10.1021/ja100521m
日期:2010.5.12
prepared. They were used in the preparation of new monophosphine-palladium(0)-dvds complexes, which were employed as catalysts for the selective telomerization of 1,3-butadiene with methanol to obtain 1-methoxyocta-2,7-diene (1-MOD), the keyintermediate in the Dow 1-octene process. Several ligands showed improved selectivity and yield compared to that of the benchmark ligand PPh(3). Especially 2,7-di-tert-butyl-9
[EN] NOVEL THERAPEUTIC AGENTS FOR THE TREATMENT OF CANCER, METABOLIC DISEASES AND SKIN DISORDERS<br/>[FR] AGENTS THERAPEUTIQUES POUR LE TRAITEMENT DU CANCER, DES MALADIES METABOLIQUES ET DE LA PEAU
申请人:AUSPEX PHARMACEUTICALS
公开号:WO2005108338A1
公开(公告)日:2005-11-17
The present invention is directed to novel compounds according to formulae (I) wherein R1, R2, R3 and R4 are as defined herein. The invention also discloses methods of preparation, pharmaceutical compositions, and methods of disease treatment utilizing pharmaceutical compositions comprising these compounds. The compounds of this invention are novel therapeutic agents for the treatment of cancer, diabetes, metabolic diseases and skin disorders in mammalian subjects. These compounds are also useful modulators of gene expression. They exert their activity by interfering with certain cellular signal transduction cascades. The compounds of the invention are thus also useful for regulating cell differentiation and cell cycle processes that are controlled or regulated by various hormones or cytokines. The invention also discloses pharmaceutical compositions and methods of treatment of disease in mammals.
Novel therapeutic agents for the treatment of cancer, metabolic diseases and skin disorders
申请人:Sarshar Sepehr
公开号:US20070078189A1
公开(公告)日:2007-04-05
The present invention is directed to novel compounds according to formulae
wherein R
1
, R
2
, R
3
and R
4
are as defined herein. The invention also discloses methods of preparation, pharmaceutical compositions, and methods of disease treatment utilizing pharmaceutical compositions comprising these compounds. The compounds of this invention are novel therapeutic agents for the treatment of cancer, diabetes, metabolic diseases and skin disorders in mammalian subjects. These compounds are also useful modulators of gene expression. They exert their activity by interfering with certain cellular signal transduction cascades. The compounds of the invention are thus also useful for regulating cell differentiation and cell cycle processes that are controlled or regulated by various hormones or cytokines. The invention also discloses pharmaceutical compositions and methods of treatment of disease in mammals.