Highly Reactive, Single-Component Nickel Catalyst Precursor for Suzuki-Miyuara Cross-Coupling of Heteroaryl Boronic Acids with Heteroaryl Halides
作者:Shaozhong Ge、John F. Hartwig
DOI:10.1002/anie.201207428
日期:2012.12.14
One for all: The coupling of a range of nitrogen‐ and sulfur‐containing heteroaryl halides with five‐membered nitrogen‐, oxygen‐, and sulfur‐containing heteroaryl boronic acids were achieved in high yields with only 0.5 mol % of the single‐component nickel precatalyst [(dppf)NiCl(cinnamyl)] (dppf=1,1′‐bis(diphenylphosphanyl)ferrocene). The reaction demonstrates good functional group compatibility,
Comparison of dppf‐Supported Nickel Precatalysts for the Suzuki–Miyaura Reaction: The Observation and Activity of Nickel(I)
作者:Louise M. Guard、Megan Mohadjer Beromi、Gary W. Brudvig、Nilay Hazari、David J. Vinyard
DOI:10.1002/anie.201505699
日期:2015.11.2
Ni‐based precatalysts for the Suzuki–Miyaurareaction have potential chemical and economic advantages compared to commonly used Pd systems. Here, we compare Ni precatalysts for the Suzuki–Miyaurareactionsupported by the dppf ligand in 3 oxidation states, 0, I and II. Surprisingly, at 80 °C they give similar catalytic activity, with all systems generating significant amounts of NiI during the reaction
Compounds Which Bind to the Active Site of Protein Kinase Enzymes
申请人:Birault Veronique
公开号:US20090163515A1
公开(公告)日:2009-06-25
The present invention relates to a compound and a group of compounds which are inhibitors of Rho kinase (ROK, ROCK). In addition, the invention relates to methods of treatment and use of the compounds in the manufacture of a medicament for application to a number of therapeutic indications including cardiovascular disease (coronary vasospasm, hypertensive disease, arteriosclerosis), stroke, cancer, erectile dysfunction, asthma, osteoporosis, glaucoma and AIDS. The compounds can be used in screening programmes against protein kinases. The invention also provides methods for making compounds and libraries that include these compounds.