scholarly journals Practical N-Hydroxyphthalimide-Mediated Oxidation of Sulfonamides to N-Sulfonylimines

Molecules ◽  
2019 ◽  
Vol 24 (20) ◽  
pp. 3771 ◽  
Author(s):  
Jian Wang ◽  
Wen-Jing Yi
Keyword(s):  
New Method ◽  
One Pot ◽  
Oxidation Method ◽  
Mild Conditions ◽  
The One ◽  
Mediated Oxidation

A new method to prepare sulfonylimines through the oxidation of sulfonamides mediated by N-hydroxyphthalimide under mild conditions has been developed. Compared to reported oxidation methods, broader substrates scope and milder conditions were achieved in our method. Importantly, this oxidation method can afford N-sulfonyl enaminones using Mannich products as starting materials. Additionally, the one-pot Friedel–Crafts arylation reaction of unseparated N-sulfonylimine formed in our system with 1,3,5-trimethoxybenzene was successful without any additional catalyst.

Efficient pseudo five-component synthesis of 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives promoted by a novel ionic liquid catalyst

2018 ◽  
Vol 73 (3-4) ◽  
pp. 191-195 ◽  
Author(s):  
Zahra Abshirini ◽  
Abdolkarim Zare
Keyword(s):  
Ionic Liquid ◽  
Disulfonic Acid ◽  
Thermal Gravimetric ◽  
One Pot ◽  
Mild Conditions ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
The One ◽  
C Nmr

AbstractIn this research, initial production and characterization of a novel Brønsted-acidic ionic liquid, namely,N,N,N′,N′-tetramethylethylenediaminium-N,N′-disulfonic acid hydrogen sulfate ([TMEDSA][HSO4]2), has been described (characterization was achieved using Fourier-transform infrared spectroscopy,1H nuclear magnetic resonance (NMR),13C NMR, and mass and thermal gravimetric spectra). Thereafter, utilization of [TMEDSA][HSO4]2as a highly effectual catalyst for the synthesis of 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives through the one-pot pseudo five-component reaction of phenylhydrazine (2 eq.) with ethyl acetoacetate (2 eq.) and arylaldehydes (1 eq.) in relatively mild conditions, has been reported.

scholarly journals Convenient Approach for the One-Pot, Three-Component Synthesis of 1-(Benzothiazolylamino)Methyl-2- Naphthol Using Citric Acid as a Green Catalyst

2016 ◽  
Vol 24 (2) ◽  
pp. 112-121 ◽  
Author(s):  
Mojtaba Lashkari ◽  
Malek Taher Maghsoodlou ◽  
Mahsa Karima ◽  
Belgais Adrom ◽  
Maryam Fatahpour
Keyword(s):  
Citric Acid ◽  
Isolation Procedure ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Green Catalyst ◽  
Mild Conditions ◽  
Convenient Approach ◽  
The One ◽  
Naphthol Derivatives

Abstract A straightforward, one-pot multicomponent synthesis of 1-(benzothiazolylamino)methyl-2-naphthol derivatives was achieved by condensation of 2-naphthol, aldehydes, and 2- aminobenzothiazole catalyzed by a small amount of citric acid, which acts as a benign enviermentally catalyst. Mild conditions with excellent yields and a simple isolation procedure are noteworthy advantages of this method.

scholarly journals Aerobic synthesis of N-sulfonylamidines mediated by N-heterocyclic carbene copper(I) catalysts

2020 ◽  
Vol 16 ◽  
pp. 482-491
Author(s):  
Faïma Lazreg ◽  
Marie Vasseur ◽  
Alexandra M Z Slawin ◽  
Catherine S J Cazin
Keyword(s):  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Highly Active ◽  
Copper Acetylide ◽  
The One

A new catalytic strategy for the one-pot synthesis of N-sulfonylamidines is described. The cationic copper(I) complexes were found to be highly active and efficient under mild conditions in air and in the absence of solvent. A copper acetylide is proposed as key intermediate in this transformation.

Carbonyl-Oxygen-Assisted KOMe-Mediated Formal Hydration of 4-Alkynones: Complete Regioselectivity in the One-Pot Synthesis of 1,4-Diketones under Mild Conditions

2018 ◽  
Vol 2018 (13) ◽  
pp. 1581-1588 ◽  
Author(s):  
Xue-Ting Bai ◽  
Qian-Qian Zhang ◽  
Shuai Zhang ◽  
Dan-Yun Chen ◽  
Ji-Ya Fu ◽  
...  
Keyword(s):  
Carbonyl Oxygen ◽  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
The One

One-pot fluorosulfurylation of Grignard reagents using sulfuryl fluoride

2019 ◽  
Vol 55 (98) ◽  
pp. 14753-14756 ◽  
Author(s):  
Cayo Lee ◽  
Nicholas D. Ball ◽  
Glenn M. Sammis
Keyword(s):  
New Method ◽  
Grignard Reagents ◽  
One Pot ◽  
Sulfuryl Fluoride ◽  
The One

Herein, we report a new method for the one-pot syntheses of sulfonyl fluorides.

scholarly journals New sulfuryl fluoride-derived alkylating reagents for the 1,1-dihydrofluoroalkylation of thiols

2019 ◽  
Vol 10 (44) ◽  
pp. 10331-10335 ◽  
Author(s):  
Paul J. Foth ◽  
Frances Gu ◽  
Trevor G. Bolduc ◽  
Sahil S. Kanani ◽  
Glenn M. Sammis
Keyword(s):  
New Method ◽  
One Pot ◽  
Sulfuryl Fluoride ◽  
One Pot Synthesis ◽  
The One ◽  
Alkylating Reagents

Herein, we report a new method for the one-pot synthesis of 1,1-dihydrofluoroalkyl sulfides by bubbling sulfuryl fluoride (SO2F2) through a solution of the corresponding alcohol and thiol.

ChemInform Abstract: A New Method for the One-Pot Synthesis of α-Hydroxyaldehyde Ethyl Sulfates from Terminal Olefins.

ChemInform ◽  
2010 ◽  
Vol 27 (52) ◽  
pp. no-no
Author(s):  
N. V. ZYK ◽  
E. E. NESTEROV ◽  
A. N. KHLOBYSTOV ◽  
N. S. ZEFIROV
Keyword(s):  
New Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
The One ◽  
Terminal Olefins
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