A Well-Defined (POCOP)Rh Catalyst for the Coupling of Aryl Halides with Thiols
作者:Samuel D. Timpa、Christopher J. Pell、Oleg V. Ozerov
DOI:10.1021/ja505576g
日期:2014.10.22
been shown to favor aryl thiolate reductive elimination at elevated temperatures and in some cases at room temperature, compared with the analogous diarylamido/bis(phosphine) (PNP)Rh pincer system. Concerted reductive elimination has been studied with 6a directly and in the presence of aryl bromide and aryl chloride traps. This investigation demonstrates a clear rate dependence on aryl chloride concentration
Compounds effective in inhibiting replication of Hepatitis C virus (“HCV”) are described. This invention also relates to processes of making such compounds, compositions comprising such compounds, and methods of using such compounds to treat HCV infection.
Infrared intensities as a quantitative measure of intramolecular interactions. Part XXVIII. Benzenethiols and methyl and t-butyl phenyl sulphides
作者:Nigel C. Cutress、T. Bruce Grindley、Alan R. Katritzky、Ronald D. Topsom
DOI:10.1039/p29740000263
日期:——
I.r. intensities of series of meta-substituted benzenethiols and methyl phenyl and phenyl t-butyl sulphides confirm the following order of resonance donation: SMe > SH SBut. The intensities of the para-substituted benzenethiols and phenyl sulphides are interpreted in terms of sulphur d-orbital acceptance when the divalent sulphur opposes a donor substituent. A scale of d-orbital-acceptor ability is
一系列间位取代的苯硫醇与甲基苯基和苯基叔丁基硫化物的Ir强度证实了共振给予的以下顺序:SMe> SH SBu t。当二价硫与供体取代基相对时,对位取代的苯硫醇和苯硫醚的强度用硫d-轨道接受来解释。对于一系列取代基,给出了d-轨道受体能力的规模。
Metallation reactions. XXV. A re-examination of the metallation reaction of (alkylthio)fluorobenzenes
The metallation of (alkylthio)fluorobenzenes by organolithium compounds, lithium amides and butyllithium/potassium tert-butoxide superbasic mixture was re-examined. To avoid the formation of defluorinated compounds all the reactions must be carried out below −80°C. The para-substituted 1a and 1b showed a regiochemistry directed by the halogen; the ortho-derivative 1c underwent metallation ortho to
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
申请人:Plexxikon Inc.
公开号:US20160176865A1
公开(公告)日:2016-06-23
Compounds active on protein kinases are described, as well as methods of using such compounds to treat diseases and conditions associated with aberrant activity of protein kinases.