Highly Crystalline K‐Intercalated Polymeric Carbon Nitride for Visible‐Light Photocatalytic Alkenes and Alkynes Deuterations
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Science"
DOI: 10.1002/advs.201801403
Abstract: Abstract In addition to the significance of photocatalytic hydrogen evolution, the utilization of the in situ generated H/D (deuterium) active species from water splitting for artificial photosynthesis of high value‐added chemicals is very attractive and… read more here.
Keywords: intercalated polymeric; carbon; polymeric carbon; carbon nitride ... See more keywords
Inexpensive and rapid hydrogenation catalyst from CuSO4/CoCl2 — Chemoselective reduction of alkenes and alkynes in the presence of benzyl protecting groups
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.02.026
Abstract: Abstract The simple reduction of a number of alkenes and alkynes was performed with a typical reaction time of 20 min using a copper-cobalt catalytic system. The reduction did not cleave benzyl protecting groups which are… read more here.
Keywords: reduction; hydrogenation; protecting groups; catalyst ... See more keywords
Theoretical Insight into C(sp3)–F Bond Activations and Origins of Chemo- and Regioselectivities of “Tunable” Nickel-Mediated/-Catalyzed Couplings of 2-Trifluoromethyl-1-alkenes with Alkynes
Sign Up to like & getrecommendations! Published in 2017 at "Organometallics"
DOI: 10.1021/acs.organomet.7b00514
Abstract: The mechanisms and chemo- and regioselectivities of divergent (Ni(cod)2/PCy3)-mediated/-catalyzed C(sp3)–F bond activation of 2-trifluoromethyl-1-alkenes (1) with alkynes (2) were investigated by density functional theory (DFT) calculations. The nickel-mediated/-catalyzed reaction involves sequential ligand exchange, alkene coordination,… read more here.
Keywords: chemo regioselectivities; trifluoromethyl alkenes; nickel mediated; mediated catalyzed ... See more keywords
Diethylzinc-Mediated Radical 1,2-Addition of Alkenes and Alkynes.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c00669
Abstract: A novel diethylzinc-mediated radical 1,2-addition of perfluoroalkyl iodides to unactivated alkenes and alkynes is presented, which demonstrates a novel way to generate an ethyl difluoroacetate radical. This method is highly efficient and gives full conversions… read more here.
Keywords: addition alkenes; diethylzinc mediated; mediated radical; radical addition ... See more keywords
Organophotoredox-Catalyzed Sulfurization of Alkenes and Alkynes: Selective and Controlled Synthesis of Sulfoxides, β-Hydroxysulfoxides, and β-Keto Sulfides.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02307
Abstract: A visible-light organophotoredox-catalyzed sulfurization of alkenes and alkynes with aromatic and heteroaromatic thiols using eco-friendly air (O2) as the sole oxidant has been demonstrated. The established method delivers a novel, benign, and metal-free strategy for… read more here.
Keywords: catalyzed sulfurization; selective controlled; organophotoredox catalyzed; sulfoxides hydroxysulfoxides ... See more keywords
Additive- and Ligand-Free Cross-Coupling Reactions between Alkenes and Alkynes by Iridium Catalysis.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b01766
Abstract: Although a range of transition-metal-catalyzed cross-coupling reactions of alkenes and alkynes have been developed to produce valuable conjugated dienes, extension of these reactions to iridium catalysis has yet to be demonstrated. The first iridium-catalyzed alkene-alkyne… read more here.
Keywords: reactions alkenes; cross coupling; coupling reactions; alkenes alkynes ... See more keywords
Aerobic Cleavage of Alkenes and Alkynes into Carbonyl and Carboxyl Compounds
Sign Up to like & getrecommendations! Published in 2017 at "ACS Catalysis"
DOI: 10.1021/acscatal.6b03654
Abstract: This review provides an overview of the recent developments on the oxygen-mediated cleavage of olefins and acetylene derivatives to provide carbonyl and carboxylic compounds. A number of photo, organo, and metal catalysts have been reviewed… read more here.
Keywords: alkynes carbonyl; cleavage; cleavage alkenes; aerobic cleavage ... See more keywords
Homogeneous Manganese-Catalyzed Hydrofunctionalizations of Alkenes and Alkynes: Catalytic and Mechanistic Tendencies
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c05109
Abstract: In recent years, many manganese-based homogeneous catalytic precursors have been developed as powerful alternatives in organic synthesis. Among these, the hydrofunctionalizations of unsaturated C–C bonds correspond to outstanding ways to afford compounds with more versatile… read more here.
Keywords: manganese catalyzed; hydrofunctionalizations alkenes; mechanistic tendencies; homogeneous manganese ... See more keywords
Carboberyllation: addition of organoberyllium species to alkenes and alkynes. A comparison with carboboration.
Sign Up to like & getrecommendations! Published in 2017 at "Dalton transactions"
DOI: 10.1039/c7dt01370a
Abstract: The potential for carbometallation reactions between organoberyllium and model alkenes and alkynes has been investigated in a computational study. Results indicate that barriers for carbometallation reactions between BeR2 and alkynes are as low as 100… read more here.
Keywords: carboboration; addition; carboberyllation addition; carbometallation reactions ... See more keywords
Hydrophosphination of alkenes and alkynes with primary phosphines catalyzed by zirconium complexes bearing aminophenolato ligands.
Sign Up to like & getrecommendations! Published in 2018 at "Dalton transactions"
DOI: 10.1039/c8dt02122h
Abstract: Zirconium complexes stabilized by amine-bridged bis(phenolato) ligands showed good activity and chemo-selectivity in catalyzing intermolecular hydrophosphination of C-C multiple bonds with primary phosphines under mild conditions. A broad range of alkenes and alkynes underwent a… read more here.
Keywords: zirconium complexes; primary phosphines; hydrophosphination alkenes; hydrophosphination ... See more keywords
Visible light initiated hydrothiolation of alkenes and alkynes over ZnIn2S4
Sign Up to like & getrecommendations! Published in 2019 at "Green Chemistry"
DOI: 10.1039/c9gc00328b
Abstract: A green, sustainable and cost-effective strategy for the synthesis of thiolated products. read more here.
Keywords: initiated hydrothiolation; light initiated; visible light; alkenes alkynes ... See more keywords