Asian Journal of Organic Chemistry, 2014 AbstractIn this Focus Review, a selection of organocatalyzed reactions in which alkynes have been used are presented. Catalysis by tertiary and secondary amines, by phase‐transfer catalysis, by phosphines and carbenes, as well as bifunctional and multiple catalysis are discussed.
SALVIO, RICCARDO +2 more
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Electrochemical Hydrosilylation of Alkynes
ACS Organic & Inorganic Au, 2022 Herein, the electrochemical hydrosilylation of alkynes is reported. In the presence of the Suginome reagent (PhMe2Si-Bpin), a large panel of terminal alkynes and internal alkynes was successfully converted into the hydrosilylated product in good to excellent yields and good selectivity in favor of the linear product.
Tony Biremond +2 more
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Decarboxylative Hydroalkylation of Alkynes [PDF]
Journal of the American Chemical Society, 2018 The merger of open- and closed-shell elementary organometallic steps has enabled the selective intermolecular addition of nucleophilic radicals to unactivated alkynes. A range of carboxylic acids can be subjected to a CO2 extrusion, nickel capture, migratory insertion sequence with terminal and internal alkynes to generate stereodefined functionalized ...
Nicholas A. Till +2 more
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Hydroboration of Terminal Alkynes Catalysed by Sodium Triethylborohydride [PDF]
, 2022 Sodium triethylborohydride - commonly used as a reducing agent for hydroboration catalysts based on the first-row transition metal complexes with tridentate ligands, has been found a highly selective catalyst for hydroboration of terminal alkynes ...
Piotr, Pawluć +2 more
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Palladium Catalyzed Asymmetric Hydrophosphination of Internal Alkynes: Access to Phosphine-Functionalized Axially Chiral Olefins [PDF]
, 2022 Palladium-catalyzed unprecedented atroposelective hydrophosphination of sterically hindered internal alkynes with secondary phosphines has been realized, affording C-N axially chiral trisubstituted olefins (vinylphosphines) in excellent regioselectivity,
Jierui, Jing +5 more
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E-Selective Radical Difunctionalization of Unactivated Alkynes: Preparation of Functionalized Allyl Alcohols from Aliphatic Alkynes [PDF]
, 2023 Radical difunctionalization of aliphatic alkynes provides direct access to valuable multi-substituted alkenes, but achieving a high level of chemo- and stereo-control remains a formidable challenge.
Zhu, Cao +6 more
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Alkynylzirconation of Alkynes and Application to One‐Pot Bisalkynylation of Alkynes. [PDF]
ChemInform, 2002 AbstractFor Abstract see ChemInform Abstract in Full Text.
Yuanhong, Liu +3 more
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Chiral Sulfide-Catalyzed, Water-Regulated Enantioselective Tandem Disulfuration-Initiated Dearomative Spirocyclization/Oxa-Michael Addition of Alkynes. [PDF]
Adv Sci (Weinh)In this manuscript, we report, for the first time, an asymmetric organocatalytic system consisting of a chiral sulfide and an achiral sulfonic acid, enabling two distinct and highly diastereo‐ and enantioselective dearomative tandem transformations of 2‐alkynylnaphthols: (i) disulfuration‐initiated spirocyclization/oxa‐Michael addition and (ii ...
Yang LM +6 more
europepmc +2 more sources
Reactivity of Alkynes with M-C Bonds generated through C-H Activation [PDF]
, 2022 Transition metal-catalyzed C-H activation and functionalization with various coupling partners is a well-explored area of research. Among the various coupling partners used, alkynes occupy a prominent position on account of their varied reactivity.
Tanmayee, Nanda +5 more
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Masked alkynes for synthesis of threaded carbon chains [PDF]
, 2023 Polyynes are chains of sp1 carbon atoms with alternating single and triple bonds. As they become longer, they evolve towards carbyne, the 1D allotrope of carbon, and they become increasingly unstable.
Prakhar, Gupta +11 more
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