In Water Markovnikov Hydration and One-Pot Reductive Hydroamination of Terminal Alkynes under Ruthenium Nanoparticle Catalysis

2020 ◽  
Vol 2020 (11-12) ◽  
pp. 1000-1003 ◽  
Author(s):  
Caterina Risi ◽  
Elena Cini ◽  
Elena Petricci ◽  
Simone Saponaro ◽  
Maurizio Taddei
Keyword(s):  
Terminal Alkynes ◽  
One Pot ◽  
Nanoparticle Catalysis

One-Pot Synthesis of Symmetrical and Asymmetrical 3-Amino Diynes via Cu(I)-Catalyzed Reaction of Enaminones with Terminal Alkynes

2021 ◽  
Author(s):  
Changyuan Zhang ◽  
Huosheng Guo ◽  
Lulu Chen ◽  
Jiantao Zhang ◽  
Mengping Guo ◽  
...  
Keyword(s):  
Terminal Alkynes ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation

2017 ◽  
Vol 67 (3) ◽  
pp. 309-324 ◽  
Author(s):  
Nadjet Rezki ◽  
Mohamed Reda Aouad
Keyword(s):  
Antimicrobial Activity ◽  
Cycloaddition Reaction ◽  
Dipolar Cycloaddition ◽  
Terminal Alkynes ◽  
One Pot ◽  
Alkyl Aryl ◽  
Antimicrobial Evaluation ◽  
Ultrasound Assisted ◽  
Click Synthesis

AbstractThe present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular conjugates. It involved three-component condensation of the appropriate bromoacetamide benzothiazole, sodium azide and 4-alkyl/aryl-5-(2-fluorophenyl)-3-(prop-2-ynylthio)-1,2,4-triazoles4a-ethrough a Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction. This approach involvesin situgeneration of azidoacetamide benzothiazole, followed by condensation with terminal alkynes in the presence of CuSO4/Na-ascorbate in aqueous DMSO under both conventional and ultrasound conditions. Some of the designed 1,2,3-triazole conjugates6a-owere recognized for their antimicrobial activity against some bacterial and fungal pathogenic strains.

Unprecedented one-pot multicomponent synthesis of propargylamines using Amberlyst A-21 supported CuI under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46074-46087 ◽  
Author(s):  
Giovanna Bosica ◽  
John Gabarretta
Keyword(s):  
Coupling Reaction ◽  
Solvent Free ◽  
Environmentally Benign ◽  
Terminal Alkynes ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Solvent Free Conditions

An environmentally benign, one-pot, A3-coupling reaction of various aldehydes, amines and terminal alkynes for the synthesis of propargylamine was catalysed by Amberlyst A-21 supported CuI, under heterogeneous and solvent-free conditions.

scholarly journals Synthesis of a Novel Series of Cu(I) Complexes Bearing Alkylated 1,3,5-Triaza-7-phosphaadamantane as Homogeneous and Carbon-Supported Catalysts for the Synthesis of 1- and 2-Substituted-1,2,3-triazoles

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2702
Author(s):  
Ivy L. Librando ◽  
Abdallah G. Mahmoud ◽  
Sónia A. C. Carabineiro ◽  
M. Fátima C. Guedes da Silva ◽  
Carlos F. G. C. Geraldes ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Sodium Azide ◽  
Supported Catalysts ◽  
Cycloaddition Reaction ◽  
Water Soluble ◽  
Terminal Alkynes ◽  
One Pot ◽  
Catalytic Systems ◽  
Immobilized Catalyst ◽  
High Yields

The N-alkylation of 1,3,5-triaza-7-phosphaadamantane (PTA) with ortho-, meta- and para-substituted nitrobenzyl bromide under mild conditions afforded three hydrophilic PTA ammonium salts, which were used to obtain a new set of seven water-soluble copper(I) complexes. The new compounds were fully characterized and their catalytic activity was investigated for the low power microwave assisted one-pot azide–alkyne cycloaddition reaction in homogeneous aqueous medium to obtain disubstituted 1,2,3-triazoles. The most active catalysts were immobilized on activated carbon (AC), multi-walled carbon nanotubes (CNT), as well as surface functionalized AC and CNT, with the most efficient support being the CNT treated with nitric acid and NaOH. In the presence of the immobilized catalyst, several 1,4-disubstituted-1,2,3-triazoles were obtained from the reaction of terminal alkynes, organic halides and sodium azide in moderate yields up to 80%. Furthermore, the catalyzed reaction of terminal alkynes, formaldehyde and sodium azide afforded 2-hydroxymethyl-2H-1,2,3-triazoles in high yields up to 99%. The immobilized catalyst can be recovered and recycled through simple workup steps and reused up to five consecutive cycles without a marked loss in activity. The described catalytic systems proceed with a broad substrate scope, under microwave irradiation in aqueous medium and according to “click rules”.

One-pot conversion of activated alcohols into 1,1-dibromoalkenes and terminal alkynes using tandem oxidation processes with manganese dioxide

Tetrahedron ◽  
2006 ◽  
Vol 62 (28) ◽  
pp. 6673-6680 ◽  
Author(s):  
Ernesto Quesada ◽  
Steven A. Raw ◽  
Mark Reid ◽  
Estelle Roman ◽  
Richard J.K. Taylor
Keyword(s):  
Manganese Dioxide ◽  
Terminal Alkynes ◽  
One Pot ◽  
Oxidation Processes

Controllable assembly of the benzothiazole framework using a CC triple bond as a one-carbon synthon

2018 ◽  
Vol 54 (14) ◽  
pp. 1742-1745 ◽  
Author(s):  
Yubing Huang ◽  
Donghao Yan ◽  
Xu Wang ◽  
Peiqi Zhou ◽  
Wanqing Wu ◽  
...  
Keyword(s):  
Triple Bond ◽  
Elemental Sulfur ◽  
Terminal Alkynes ◽  
One Pot ◽  
Benzothiazole Derivatives

A one-pot protocol to controllably assemble diverse benzothiazole derivatives from o-haloanilines, elemental sulfur and terminal alkynes has been realized.

One-pot synthesis of 3-aminofurans using a simple and efficient recyclable CuI/[bmim]PF6 system

2021 ◽  
Author(s):  
Guguloth Veeranna ◽  
Ramesh Balaboina ◽  
Narasimha Swamy Thirukovela ◽  
Ravindhar Vadde
Keyword(s):  
Secondary Amines ◽  
Terminal Alkynes ◽  
One Pot ◽  
One Pot Synthesis ◽  
System P ◽  
Three Component Reaction ◽  
The One

The one-pot three-component reaction of several 2-ketoaldehdyes, secondary amines and terminal alkynes to access 3-aminofurans was proceeded well in [bmim][PF6] using a simple and cheap CuI catalyst. The resulted 3-aminofuran...

One-pot synthesis of new iso-DPP derivatives from terminal alkynes and isocyanates

2019 ◽  
Vol 60 (39) ◽  
pp. 151079
Author(s):  
Jonathan Guild ◽  
Michael J. Morris ◽  
Craig C. Robertson ◽  
Alexander W.H. Speed
Keyword(s):  
Terminal Alkynes ◽  
One Pot ◽  
One Pot Synthesis
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