Efficient one-pot synthesis of propargylamines catalysed by gold nanocrystals stabilized on montmorillonite

2014 ◽  
Vol 4 (11) ◽  
pp. 4001-4009 ◽  
Author(s):  
Bibek Jyoti Borah ◽  
Subrat Jyoti Borah ◽  
Kokil Saikia ◽  
Dipak Kumar Dutta
Keyword(s):  
One Pot ◽  
Gold Nanocrystals ◽  
One Pot Synthesis ◽  
The One ◽  
Three Component Coupling

Size selective Au0-nanoparticles were generatedin situin the nanopores of montmorillonite and applied in the one-pot, three-component coupling of an aldehyde, an amine and an alkyne to synthesize propargylamines.

scholarly journals A One-Pot Synthesis and Characterization of Antibacterial Silver Nanoparticle–Cellulose Film

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 440 ◽  
Author(s):  
Qi-Yuan Chen ◽  
Sheng-Ling Xiao ◽  
Sheldon Q. Shi ◽  
Li-Ping Cai
Keyword(s):  
Composite Film ◽  
Food Packaging ◽  
Antibacterial Activities ◽  
Light Transmittance ◽  
Ag Nps ◽  
One Pot ◽  
One Pot Synthesis ◽  
The One

Using N,N-dimethylacetamide (DMAc) as a reducing agent in the presence of PVP-K30, the stable silver nanoparticles (Ag-NPs) solution was prepared by a convenient method for the in situ reduction of silver nitrate. The cellulose–Ag-NPs composite film (CANF) was cast in the same container using lithium chloride (LiCl) giving the Ag-NPs-PVP/DMAc solution cellulose solubility as well as γ-mercaptopropyltrimethoxysilane (MPTS) to couple Ag-NPs and cellulose. The results showed that the Ag-NPs were uniformly dispersed in solution, and the solution had strong antibacterial activities. It was found that the one-pot synthesis allowed the growth of and cross-linking with cellulose processes of Ag-NPs conducted simultaneously. Approximately 61% of Ag-NPs was successfully loaded in CANF, and Ag-NPs were uniformly dispersed in the surface and internal of the composite film. The composite film exhibited good tensile properties (tensile strength could reach up to 86.4 MPa), transparency (light transmittance exceeds 70%), thermal stability, and remarkable antibacterial activities. The sterilization effect of CANF0.04 against Staphylococcus aureus and Escherichia coli exceed 99.9%. Due to low residual LiCl/DMAc and low diffusion of Ag-NPs, the composite film may have potential for applications in food packaging and bacterial barrier.

2-Phenyl-2,3-dihydrobenzo[d]thiazole: A Mild, Efficient, and Highly Active in situ Generated Chemoselective Reducing Agent for the One-Pot Synthesis of 5-Monoalkylbarbiturates in Water

Synlett ◽  
2017 ◽  
Vol 29 (04) ◽  
pp. 477-482 ◽  
Author(s):  
Dibakar Deka ◽  
Subarna Kalita
Keyword(s):  
Reducing Agent ◽  
High Yield ◽  
Purification Process ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Highly Active ◽  
The One ◽  
Operational Simplicity

A metal- and catalyst-free reductive alkylation protocol for the one-pot synthesis of 5-monoalkylbarbiturates from barbituric acids and aldehydes using the in situ generated chemoselective reducing agent 2-phenyl-2,3-dihydrobenzo[d]thiazole from 2-aminothiophenol and benzaldehyde is described. The notable advantages of the protocol are operational simplicity, mild reaction conditions, high yield, short reaction time, and simple workup and purification process which make it highly attractive.

Simple and versatile method for the one-pot synthesis of segmented poly(urethane urea)s via in situ -formed AB-type macromonomers

2010 ◽  
Vol 60 (4) ◽  
pp. 620-629 ◽  
Author(s):  
Fatemeh Shokrolahi ◽  
Hamid Yeganeh ◽  
Hamid Mirzadeh
Keyword(s):  
One Pot ◽  
One Pot Synthesis ◽  
The One

scholarly journals One-Pot Synthesis of B-Aryl Carboranes with Sensitive Functional Groups Using Sequential Cobalt- and Palladium-Catalyzed Reactions

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1348
Author(s):  
Sergey A. Anufriev ◽  
Akim V. Shmal’ko ◽  
Kyrill Yu. Suponitsky ◽  
Igor B. Sivaev
Keyword(s):  
Functional Groups ◽  
X Ray Diffraction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Palladium Catalyzed ◽  
Catalyzed Reactions ◽  
The One ◽  
Solid State Structures ◽  
Derivatives Of

The simple and efficient method was developed for the one-pot synthesis of B-substituted aryl derivatives of ortho-carborane with functional groups sensitive to organolithium and organomagnesium reagents using 9-iodo-ortho-carborane and generated in situ organozinc compounds. The method proposed was used to prepare a series of 9-aryl-ortho-carboranes, including those containing nitrile and ester groups, 9-RC6H4-1,2-C2B10H11 (R = p-Me, p-NMe2, p-OCH2OMe, o-OMe, p-OMe, o-CN, p-CN, o-COOEt, m-COOEt, and p-COOEt). It was demonstrated that the same approach can be used for synthesis of diaryl derivatives of ortho-carborane 9,12-(RC6H4)2-1,2-C2B10H10 (R = H, p-Me). The solid-state structures of 9-RC6H4-1,2-C2B10H11 (R = p-NMe2, p-OCH2OMe, o-OMe, o-CN, p-CN, m-COOEt, and p-COOEt) and 9,12-(p-MeC6H4)2-1,2-C2B10H10 were determined by single crystal X-ray diffraction.

Efficient and selective azidation of per-O-acetylated sugars using ultrasound activation: application to the one-pot synthesis of 1,2,3-triazole glycosides

2015 ◽  
Vol 39 (7) ◽  
pp. 5437-5444 ◽  
Author(s):  
Hamid Marzag ◽  
Soukaina Alaoui ◽  
Hella Amdouni ◽  
Anthony R. Martin ◽  
Khalid Bougrin ◽  
...  
Keyword(s):  
One Pot ◽  
Selective Transformation ◽  
One Pot Synthesis ◽  
Iron Copper ◽  
The One ◽  
Ultrasound Activation

A new protocol was developed for the selective transformation of acetyl-sugars to triazolyl nucleosides using in situ generated SO2(N3)2, iron/copper cocatalysis and ultrasound activation.

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