Results 11 to 20 of about 41,386 (303)
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 ...
Thomas Poisson (1627144) +5 more
core +4 more sources
Asian Journal of Organic Chemistry, 2014 In 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 ...
Moliterno M. +5 more
core +4 more sources
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
openaire +2 more sources
Electrochemical Hydroboration of Alkynes [PDF]
Chemistry – A European Journal, 2021 AbstractHerein we reported the electrochemical hydroboration of alkynes by using B2Pin2 as the boron source. This unprecedented reaction manifold was applied to a broad range of alkynes, giving the hydroboration products in good to excellent yields without the need of a metal catalyst or a hydride source.
Maude Aelterman +3 more
openaire +2 more sources
Alkynes as Synthetic Equivalents of Ketones and Aldehydes: A Hidden Entry into Carbonyl Chemistry
Molecules, 2019 The high energy packed in alkyne functional group makes alkyne reactions highly thermodynamically favorable and generally irreversible. Furthermore, the presence of two orthogonal π-bonds that can be manipulated separately enables flexible synthetic ...
Igor V. Alabugin +4 more
doaj +1 more source
Nature Communications, 2021 Alkynes are amongst the most valuable functional groups in organic chemistry, however, the preparation of alkyl-substituted alkynes still remains elusive. Here the authors show a nickel-catalyzed deaminative Sonogashira coupling of alkylpyridinium salts.
Xingjie Zhang +4 more
doaj +1 more source
[3+2] Cycloaddition of alkyl aldehydes and alkynes enabled by photoinduced hydrogen atom transfer
Nature Communications, 2022 In contrast to the prevalence of 1,3-dipolar cycloadditions, radical [3+2] annulations of alkynes are underexplored. Here, the authors describe [3+2] cycloadditions of various internal alkynes with readily accessible aliphatic aldehydes via photoinduced ...
Siya Le +6 more
doaj +1 more source
Synthesis of aryl-1H-1,2,3-triazoles via 1,3-dipolar cycloaddition
Orbital: The Electronic Journal of Chemistry, 2012 A series of Aryl-1H-1,2,3-triazoles were prepared from the reaction between aril-azide (1) with 1.5 equiv. of terminal alkynes (2a-o). The reactions carried out at room temperature and in the presence of CuI (10 mol%) in acetonitrile. The compounds (3a-o)
Wagner O. Valença +2 more
doaj +1 more source
Efficient Sonogashira Coupling Reaction Catalyzed by Copper (I) Iodide in the Presence of KF/Al2O3 [PDF]
شیمی کاربردی روز, 2009 We have developed a convenient and efficient method for coupling of aryl iodides and bromides with terminal alkynes. The protocol uses CuI as catalyst, 1, 10-phenanthroline as ligand, KF/Al2O3 as base and toluene as solvent.
Rahman Hosseinzadeh +2 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2019 An iodine-mediated hydration reaction of alkynes serves as a green alternative to metal-catalyzed procedures. Previous work has shown that this method works well with terminal alkynes on keto-functionalized scaffolds, including 1,3-dicarbonyls and their ...
Zachary Lee +8 more
doaj +1 more source