Results 181 to 190 of about 352,111 (240)
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Angewandte Chemie, 2019
Ketones are an important class of molecules in synthetic and medicinal chemistry. Rapid and modular synthesis of ketones remains in high demand. Described here is a nickel-catalyzed three-component reductive carbonylation method for the synthesis of ...
Renyi Shi, Xile Hu
semanticscholar +1 more source
Ketones are an important class of molecules in synthetic and medicinal chemistry. Rapid and modular synthesis of ketones remains in high demand. Described here is a nickel-catalyzed three-component reductive carbonylation method for the synthesis of ...
Renyi Shi, Xile Hu
semanticscholar +1 more source
Organic Letters, 2018
The α-alkylation of ketones using an earth-abundant and nonprecious NiBr2/L1 system is reported. This nickel-catalyzed reaction could be performed in gram scale and successfully applied in the synthesis of donepezil (Alzheimer's drug) and ...
Jagadish Das +3 more
semanticscholar +1 more source
The α-alkylation of ketones using an earth-abundant and nonprecious NiBr2/L1 system is reported. This nickel-catalyzed reaction could be performed in gram scale and successfully applied in the synthesis of donepezil (Alzheimer's drug) and ...
Jagadish Das +3 more
semanticscholar +1 more source
Nickel(0)-Catalyzed Hydroalkylation of 1,3-Dienes with Simple Ketones.
Journal of the American Chemical Society, 2018We developed a highly regioselective addition of 1,3-dienes with simple ketones by nickel-hydride catalyst bearing DTBM-SegPhos ligand. A wide range of aromatic and aliphatic ketones directly coupled with 1,3-dienes, providing synthetically useful γ,δ ...
Lei Cheng +4 more
semanticscholar +1 more source
Cobalt-Catalyzed Hydroboration of Alkenes, Aldehydes, and Ketones.
Organic Letters, 2018An operationally convenient and general method for hydroboration of alkenes, aldehydes, and ketones employing Co(acac)3 as a precatalyst is reported.
Sem Raj Tamang +5 more
semanticscholar +1 more source
Journal of Organic Chemistry, 2018
A series of air-stable, easily accessible tridentate ferrocene-based diamine-phosphine sulfonamide (f-diaphos) ligands were successfully developed for iridium-catalyzed asymmetric hydrogenation of ketones.
Fei Ling +6 more
semanticscholar +1 more source
A series of air-stable, easily accessible tridentate ferrocene-based diamine-phosphine sulfonamide (f-diaphos) ligands were successfully developed for iridium-catalyzed asymmetric hydrogenation of ketones.
Fei Ling +6 more
semanticscholar +1 more source
Macromolecular Rapid Communications, 1996
AbstractStructures of poly(ether ether ketone ketone)‐poly(ether biphenyl ether ketone ketone) copolymers were studied by using small angle X‐ray scattering and the one‐dimensional electron density correlation function method. The results revealed that structures of the aggregated state of the copolymers depend closely on the biphenyl content (nb ...
Hongfang Zhang +4 more
openaire +1 more source
AbstractStructures of poly(ether ether ketone ketone)‐poly(ether biphenyl ether ketone ketone) copolymers were studied by using small angle X‐ray scattering and the one‐dimensional electron density correlation function method. The results revealed that structures of the aggregated state of the copolymers depend closely on the biphenyl content (nb ...
Hongfang Zhang +4 more
openaire +1 more source
Polymers for Advanced Technologies, 2011
AbstractA new monomer, 4,4′‐bis(4‐phenoxybenzoyl)diphenyl(BPOBDP), was synthesized via a two‐step synthetic procedure. A series of novel poly(ether sulfone ether ketone ketone)/poly(ether ketone diphenyl ketone ether ketone ketone) copolymers were prepared by electrophilic Friedel–Crafts solution copolycondensation of isophthaloyl chloride (IPC) with a
Mingzhong Cai +4 more
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AbstractA new monomer, 4,4′‐bis(4‐phenoxybenzoyl)diphenyl(BPOBDP), was synthesized via a two‐step synthetic procedure. A series of novel poly(ether sulfone ether ketone ketone)/poly(ether ketone diphenyl ketone ether ketone ketone) copolymers were prepared by electrophilic Friedel–Crafts solution copolycondensation of isophthaloyl chloride (IPC) with a
Mingzhong Cai +4 more
openaire +1 more source
Enantioselective hydrogenation of dialkyl ketones
Nature Catalysis, 2020Fenglei Zhang +4 more
semanticscholar +1 more source