Microwave-assisted synthesis of asymmetric disulfides

RSC Advances ◽  
2014 ◽  
Vol 4 (54) ◽  
pp. 28794-28797 ◽  
Author(s):  
Xiaogang Lu ◽  
Hongmei Wang ◽  
Runli Gao ◽  
Daoming Sun ◽  
Xiaojing Bi
Keyword(s):  
Alkyl Halides ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Time Saving ◽  
Microwave Assisted

This paper reports an efficient, odorless and one-pot procedure for the synthesis of benzyl alkyl disulfides using mixtures of thiourea, alkyl halides, and benzyl thiocyanates. The reactions carried out in water with the assistance of microwave enable a time-saving process.

scholarly journals One-Pot Microwave-Assisted Synthesis of Water-Soluble Pyran-2,4,5-triol Glucose Amine Schiff Base Derivative: XRD/HSA Interactions, Crystal Structure, Spectral, Thermal and a DFT/TD-DFT

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Yousef Hijji ◽  
Rajeesha Rajan ◽  
Hamdi Ben Yahia ◽  
Said Mansour ◽  
Abdelkader Zarrouk ◽  
...  
Keyword(s):  
Schiff Base ◽  
Molecular Orbital ◽  
Density Functional ◽  
Condensation Reaction ◽  
3D Structure ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Td Dft

The(3R,4R,6R)-3-(((E)-2-hydroxybenzylidene)amino)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,4,5-triol water-soluble Glucose amine Schiff base (GASB-1) product was made available by condensation of 2-hydroxybenzaldehyde with (3R,6R)-3-amino-6-(hydroxymethyl)-tetra-hydro-2H-pyran-2,4,5-triol under mono-mode microwave heating. A one-pot 5-minute microwave-assisted reaction was required to complete the condensation reaction with 90% yield and without having byproducts. The 3D structure of GASB-1 was solved from single crystal X-ray diffraction data and computed by DFT/6-311G(d,p). The Hirshfeld surface analysis (HSA), molecular electronic potential (MEP), Mulliken atomic charge (MAC), and natural population analysis (NPA) were performed. The IR and UV-Vis spectra were matched to their density functional theory (DFT) relatives and the thermal behavior was resolved in an open-room condition via thermogravimetry/Derivative thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). The highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO/LUMO), density of state (DOS), and time-dependence TD-DFT computations were correlated to the experimental electron transfer in water and acrylonitrile solvents.

Microwave-assisted synthesis of 1-aryl-1H-indazoles via one-pot two-step Cu-catalyzed intramolecular N-arylation of arylhydrazones

2005 ◽  
Vol 46 (44) ◽  
pp. 7553-7557 ◽  
Author(s):  
Chittari Pabba ◽  
Hong-Jun Wang ◽  
Susan R. Mulligan ◽  
Zhen-Jia Chen ◽  
Todd M. Stark ◽  
...  
Keyword(s):  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted

Facile one-pot microwave-assisted synthesis of tungsten-doped BiVO4/WO3 heterojunctions with enhanced photocatalytic activity

2020 ◽  
Vol 125 ◽  
pp. 110783 ◽  
Author(s):  
Caroline H. Claudino ◽  
Maria Kuznetsova ◽  
Bárbara S. Rodrigues ◽  
Changqiang Chen ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted

scholarly journals Screening of Natural Deep Eutectic Solvents for Green Synthesis of 2-methyl-3-substituted Quinazolinones and Microwave-Assisted Synthesis of 3-aryl Quinazolinones in Ethanol

2020 ◽  
Vol 92 (4) ◽  
pp. 511-517
Author(s):  
Mario Komar ◽  
Maja Molnar ◽  
Anastazija Konjarević
Keyword(s):  
Green Synthesis ◽  
Anthranilic Acid ◽  
Deep Eutectic Solvents ◽  
13C Nmr Spectroscopy ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
1H And 13C Nmr ◽  
Microwave Assisted ◽  
Natural Deep Eutectic Solvents ◽  
Quinazolinone Derivatives

In this study, two fast and efficient protocols for green synthesis of 3-substituted quinazolinones were perfomed. A synthesis of 2-methyl-3-substituted quinazolinones was performed in natural deep eutectic solvents, while 3-aryl quinazolinones were obtained by using microwave assisted synthesis. Benzoxazinone, which was used as an intermediate in the synthesis of 2-methyl-3-substituted quinazolinones, was prepared conventionally from anthranilic acid and acetic anhydride. In order to find the most appropriate synthetic path, twenty natural deep eutectic solvents were applied as a solvent in these syntheses. Choline chloride:urea (1 : 2) was found to be the most efficient solvent and was further used in the synthesis of 2-methyl quinazolinone derivatives (2–12). 3-Aryl quinazolinones (13–17), on the other hand, were synthesized in one-pot microwave-assisted reaction of anthranilic acid, different amines and trimethyl orthoformate. All compounds were synthesized in good to excellent yields, characterized by LC-MS/MS spectrometry and 1H- and 13C-NMR spectroscopy.

ChemInform Abstract: One-Pot Two-Step Microwave-Assisted Synthesis of Alkylidene Acetoacetamido Esters, Useful Intermediates for β-Dehydropeptides.

ChemInform ◽  
2016 ◽  
Vol 47 (46) ◽  
Author(s):  
Angelo Viola ◽  
Lucia Ferrazzano ◽  
Roberto Greco ◽  
Lucia Cerisoli ◽  
Jonathan Caldi ◽  
...  
Keyword(s):  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted
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