Six-Membered Cyclic Amidines as Efficient Catalysts for the Synthesis of Cyclic Dithiocarbonates from Carbon Disulfide and Epoxides under Mild Conditions

Synlett ◽  
2019 ◽  
Vol 31 (01) ◽  
pp. 92-96
Author(s):  
Naoto Aoyagi ◽  
Takeshi Endo
Keyword(s):  
Ambient Temperature ◽  
Carbon Disulfide ◽  
Atmospheric Pressure ◽  
Mild Conditions ◽  
High Yields

Six-membered cyclic amidines effectively catalyzed the reaction of carbon disulfide with epoxides under mild conditions, such as atmospheric pressure and ambient temperature, to give the corresponding cyclic dithiocarbonates (1,3-oxathiolane-2-thiones) in high yields.

A One-pot Preparation of Isothiocyanates from Amines Using Two Phosgene Substitutes: Bis-(trichloromethyl) Carbonate and Trichloromethyl Chloroformates

2005 ◽  
Vol 2005 (9) ◽  
pp. 585-586 ◽  
Author(s):  
Gaofeng Bian ◽  
Weiguang Shan ◽  
Weike Su
Keyword(s):  
Carbon Disulfide ◽  
One Pot ◽  
Mild Conditions ◽  
High Yields

A series of isothiocyanates have been prepared in high yields in a one-pot reaction from commercial amines and carbon disulfide under mild conditions using bis(trichloromethyl)carbonate (BTC) and trichloromethyl chloroformate (TCF) as reagents in the presence of base.

A Selenium-Catalysed Synthesis of Thiocarbamates from Nitroarenes, Carbon Monoxide and Thiols under Mild Conditions

2008 ◽  
Vol 2008 (10) ◽  
pp. 589-591 ◽  
Author(s):  
Xiao-Peng Zhang ◽  
Shi-Wei Lu
Keyword(s):  
Carbon Monoxide ◽  
Ambient Temperature ◽  
Atmospheric Pressure ◽  
Improved Method ◽  
One Pot ◽  
Mild Conditions ◽  
The One

An improved method for the selenium-catalysed synthesis of thiocarbamates under mild conditions has been developed. With acetone as solvent, the one-pot selenium-catalysed carbonylation of nitroarenes and thiols with carbon monoxide proceeds smoothly at atmospheric pressure and ambient temperature.

scholarly journals Electrochemical multicomponent synthesis of 4-selanylpyrazoles under catalyst- and chemical-oxidant-free conditions

2021 ◽  
Author(s):  
Yan Wu ◽  
Jin-Yang Chen ◽  
Jing Ning ◽  
Xue Jiang ◽  
Jie Deng ◽  
...  
Keyword(s):  
Multicomponent Reaction ◽  
Raw Materials ◽  
Multicomponent Synthesis ◽  
Mild Conditions ◽  
Simple Protocol ◽  
High Yields

An electrochemical multicomponent reaction was established under catalyst-, chemical-oxidant-free and mild conditions, which provides an eco-friendly and simple protocol for constructing 4-selanylpyrazoles from easily available raw materials with high yields.

Inactivation of Prions Using Electrical DC Discharges at Atmospheric Pressure and Ambient Temperature

2011 ◽  
Vol 8 (4) ◽  
pp. 316-323 ◽  
Author(s):  
Jaroslav Julák ◽  
Olga Janoušková ◽  
Vladimír Scholtz ◽  
Karel Holada
Keyword(s):  
Ambient Temperature ◽  
Atmospheric Pressure

Autoignition delay times of propane mixtures under MILD conditions at atmospheric pressure

2014 ◽  
Vol 161 (12) ◽  
pp. 3022-3030 ◽  
Author(s):  
Pino Sabia ◽  
Mariarosaria de Joannon ◽  
Marco Lubrano Lavadera ◽  
Paola Giudicianni ◽  
Raffaele Ragucci
Keyword(s):  
Atmospheric Pressure ◽  
Mild Conditions ◽  
Delay Times ◽  
Autoignition Delay

Hypervalent Iodine-Mediated Beckmann Rearrangement of Ketoximes

Synlett ◽  
2018 ◽  
Vol 29 (11) ◽  
pp. 1465-1468 ◽  
Author(s):  
Tomohiro Maegawa ◽  
Yasuyoshi Miki ◽  
Ryohei Oishi ◽  
Kazutoshi Segi ◽  
Hiromi Hamamoto ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Beckmann Rearrangement ◽  
Hypervalent Iodine ◽  
Mild Conditions ◽  
High Yields

We developed a Beckmann rearrangement employing hypervalent iodine reagent under mild conditions. The reaction of ketoxime with hypervalent iodine afforded the corresponding ketone, but premixing of hypervalent iodine and a Lewis acid was effective for promoting Beckmann rearrangement. Aromatic and aliphatic ketoximes were converted into their corresponding amides in good to high yields.

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