Suzuki–Miyaura cross-coupling of aryl and alkyl halides using palladium/imidazolium salt protocols
作者:Katherine Arentsen、Stephen Caddick、F.Geoffrey N Cloke、Adam P Herring、Peter B Hitchcock
DOI:10.1016/j.tetlet.2004.02.134
日期:2004.4
simple new protocol for the high yielding Suzuki–Miyaura cross-couplings of aryl chlorides with aryl boronic acids using a palladium/imidazolium salt catalytic system is presented. The first examples of a palladium/imidazolium salt protocol for sp3–sp3 Suzuki–Miyaura couplings of alkylhalides are also disclosed.
Multicatalytic Stereoselective Synthesis of Highly Substituted Alkenes by Sequential Isomerization/Cross-Coupling Reactions
作者:Ciro Romano、Clément Mazet
DOI:10.1021/jacs.8b02134
日期:2018.4.4
patterns to deliver products with high control of the newly generated C═C bond. A highlyenantioselective variant of this [Ir/Ni] sequence has been established using a chiral iridium precatalyst. A complementary [Pd/Ni] catalytic sequence has been optimized for alkenyl methyl ethers with a remote C═C bond. The final alkenes were isolated with a lower level of stereocontrol. Upon proper choice of the Grignard
Microwave-Assisted Palladium-Catalyzed Arylation of Styrenes and Alkenes with Diaryliodonium Salts
作者:Jian Li、Li Liu、Dong Ding、Jiang-tao Sun
DOI:10.2174/1570178611310010011
日期:2013.2.1
Highly effective microwave-assisted palladium-catalyzed arylation of styrenes and alkenes with
diaryliodonium salts have been developed, giving styrenes in high yields without ligand in 60 s.
A cobalt complex, [CoCl2(dpph)] (DPPH = [1,6-bis(diphenylphosphino)hexane]), catalyzes an intermolecular styrylation reaction of alkyl halides in the presence of Me3SiCH2MgCl in ether to yield beta-alkylstyrenes. A variety of alkyl halides including alkyl chlorides can participate in the styrylation. A radical mechanism is strongly suggested for the styrylation reaction. The sequential isomerization/styrylation