Results 1 to 10 of about 116,437 (362)

Electrochemical Hydroboration of Alkynes [PDF]

open access: yesChemistry – A European Journal, 2021
AbstractHerein we reported the electrochemical hydroboration of alkynes by using B2Pin2as 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.
Thomas Poisson   +4 more
openaire   +3 more sources

Stereoselective synthesis of (E)-vinyl alkyl sulfides via hydrozirconation of terminal alkynes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
Terminal alkynes react with Cp2Zr(H)Cl (Cp = μ5-C5H5) to give organozirconium complexes, which are trapped with alkylsulfenyl chlorides to afford (E)-vinyl alkyl sulfides in good yield.
Ping Zhong, Xian Huang
doaj   +3 more sources

Synthesis and Inhibition of Influenza H1N1 Virus by Propargylaminoalkyl Derivative of Lithocholic Acid

open access: yesMolbank, 2023
In the current study, the conjugate of 3-oxo-lithocholic acid with N-methylpiperazine and paraform was synthesized using the Mannich reaction and evaluated for antiviral activity.
Anastasiya V. Petrova   +7 more
doaj   +1 more source

Hydrostannation of Alkynes [PDF]

open access: yesACS Catalysis, 2019
In this review, we present an overview of hydrostannation of alkynes until the end of 2018. Mechanism of the tin hydride addition on a triple bond is discussed at the beginning of this review in the presence of metal catalysts as Pd, Ru-based complexes, Lewis acids and under radical conditions.
Mouad Alami   +2 more
openaire   +3 more sources

HUISGEN AND HIS ADVENTURES IN A PLAYGROUND OF MECHANISMS AND NOVEL REACTIONS [PDF]

open access: yesQuímica Nova, 2021
The death of professor Rolf Huisgen (1920-2020) was announced on March 26th 2020, in the midst of the COVID-19 pandemic. Professor Huisgen was professor emeritus at the University of Munich in Germany, and studied in detail the mechanism of the 1,3 ...
Daniel T. G. Gonzaga   +5 more
doaj   +1 more source

Electrochemical Hydrosilylation of Alkynes

open access: yesACS 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
openaire   +3 more sources

Controlling alkyne reactivity by means of a copper-catalyzed radical reaction system for the synthesis of functionalized quaternary carbons

open access: yesBeilstein Journal of Organic Chemistry, 2020
A terminal alkyne is one of the most useful reactants for the synthesis of alkyne and alkene derivatives. Because an alkyne undergoes addition reaction at a C–C triple bond or cross-coupling at a terminal C–H bond. Combining those reaction patterns could
Goki Hirata   +4 more
doaj   +1 more source

Alkynylzirconation of Alkynes and Application to One‐Pot Bisalkynylation of Alkynes. [PDF]

open access: yesChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Tamotsu Takahashi   +3 more
openaire   +4 more sources

Copper-azide nanoparticle: a ‘catalyst-cum-reagent’ for the designing of 5-alkynyl 1,4-disubstituted triazoles

open access: yesScientific Reports, 2020
A single pot, wet chemical route has been applied for the synthesis of polymer supported copper azide, CuN3, nanoparticles (CANP). The hybrid system was used as ‘catalyst-cum-reagent’ for the azide-alkyne cyclo-addition reaction to construct triazole ...
Debkumar Nandi   +4 more
doaj   +1 more source

Azide-Alkyne Cycloaddition Catalyzed by a Glucose/Benedict Reagent System

open access: yesChemistry Proceedings, 2021
Benedict’s Reagent is commonly used in identifying reducing sugars through a redox process where a Cu(I) species is generated. Despite the simplicity of this reaction, this has barely been investigated as a copper (I) source for catalytic processes.
Jesús G. García Torres   +5 more
doaj   +1 more source

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