A General Method for Copper-Catalyzed Arylation of Arene C−H Bonds
作者:Hien-Quang Do、Rana M. Kashif Khan、Olafs Daugulis
DOI:10.1021/ja805688p
日期:2008.11.12
A generalmethod for copper-catalyzedarylation of sp (2) C-Hbonds with p K a's below 35 has been developed. The method employs aryl halide as the coupling partner, lithium alkoxide or K 3PO 4 base, and DMF, DMPU, or mixed DMF/xylenes solvent. A variety of electron-rich and electron-poor heterocycles such as azoles, caffeine, thiophenes, benzofuran, pyridine oxides, pyridazine, and pyrimidine can
The present invention is a one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using a combination of aryl halides, a substrate, and a copper salt as catalyst. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores and explosives.
A cooperative Pd–Cu system for direct C–H bond arylation
作者:Mathieu Lesieur、Faïma Lazreg、Catherine S. J. Cazin
DOI:10.1039/c4cc03201b
日期:——
A dual metal system bearing NHCs has been developed for the challenging construction of C–C bonds from arenes and heteroarenes.
已开发出一种双金属系统,其中含有NHCs,用于从芳烃和杂环芳烃中挑战性地构建C-C键。
Regiochemical control of the catalytic asymmetric hydroboration of 1,2-diarylalkenes
作者:Antonia Black、John M. Brown、Christophe Pichon
DOI:10.1039/b508292g
日期:——
The hydroboration of stilbenes and related disubstituted alkenes catalysed by QUINAP complexes may proceed with high enantio- and regioselectivity; rhodium and iridium catalysts give the same product regioisomer but opposite enantiomers.