A highly efficient and chemoselectivetransferhydrogenation of ketones in water has been successfully achieved with our newly developed catalyst. Simple ketones, as well as α- or β-functionalized ketones, are readily reduced. Formic acid is used as a traceless hydride source. At very low catalyst loading (S/C = 10 000 in most cases; S/C = 50 000 or 100 000 in some cases), the iridiumcatalyst is impressively
使用我们最新开发的催化剂,已成功实现了水中酮的高效化学选择性转移加氢。简单的酮以及α-或β-官能化的酮容易被还原。甲酸用作无痕氢化物源。在非常低的催化剂负载(小号/ ç = 10 000在大多数情况下;小号/ C ^ = 50 000或100 000在一些情况下)时,铱催化剂是减少在良好酮类到优异的产率令人印象深刻的高效率。TOF值可高达26000 mol mol -1 h -1。各种官能团是良好耐受的,例如杂芳基,芳氧基,烷氧基,卤素,氰基,硝基,酯,尤其是酸性亚甲基,苯酚和羧酸基团。
Selenium-Catalyzed C(sp<sup>3</sup>)H Acyloxylation: Application in the Expedient Synthesis of Isobenzofuranones
Oxidative Se‐catalyzed C(sp3)H bond acyloxylation has been used to construct a diverse array of isobenzofuranones from simple ortho‐allyl benzoic acid derivatives. The synthetic procedure employs mild reaction conditions and gives high chemoselectivity enabled by an inexpensive organodiselane catalyst. The presented approach offers a new synthetic pathway toward the core structures of phthalide natural
Phenethylamide derivatives with kinase inhibitory activity
申请人:Gould E. Alexandra
公开号:US20080064729A1
公开(公告)日:2008-03-13
The present invention provides novel phenethylamide compounds useful as inhibitors of protein kinases. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various diseases.
Nickel-catalyzed reductive allylation of aryl bromides with allylic acetates
作者:Xiaozhan Cui、Shulin Wang、Yuwei Zhang、Wei Deng、Qun Qian、Hegui Gong
DOI:10.1039/c3ob40232k
日期:——
This paper highlights Ni-catalyzed allylation of electron-rich aryl bromides with a variety of substituted allyliccarbonates using zinc as the terminal reductant, affording E-alkenes regioselectively in good to excellent yields by the addition of aryl to the less hindered allylic carbon. The electron-deficient aryl bromides and chlorides are also highly efficient coupling partners.
Bicyclic compounds with kinase inhibitory activity
申请人:Calderwood F. Emily
公开号:US20070149533A1
公开(公告)日:2007-06-28
The present invention provides novel bicyclic compounds useful as inhibitors of protein kinases. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various diseases.