A new and facile route for the synthesis of thiocarbamates from aniline, carbon monoxide, and thiols mediated by selenium
A new and facile route for the synthesis of thiocarbamates was reported. Mediated by selenium, aniline reacts very readily with carbon monoxide and thiols in the presence of triethylamine, to afford the corresponding thiocarbamates mostly in moderate to excellent yields under mild reaction conditions. Selenium can be easily recovered and recycled. Copyright
A novel one-pot solvent-free, triethylamine-assisted, selenium-catalyzed synthesis of thiocarbamates from nitroarenes, carbon monoxide, and thiols
A novel one-pot solvent-free synthesis of a series of thiocarbamates is reported. Nitroarenes, carbon monoxide, and thiols are the starting materials, with cheap element selenium as catalyst; this method offers a simple access to thiocarbamates mostly in moderate to good yields. The selenium catalyst can be easily recovered and recycled. Georg Thieme Verlag Stuttgart.
A selenium-catalysed synthesis of thiocarbamates from nitroarenes, carbon monoxide and thiols under mild conditions
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.
One-pot direct synthesis of thiocarbamates from aniline, carbon monoxide, and thiols catalyzed by selenium
Catalyzed by selenium, oxidative carbonylation of aniline and thiols with carbon monoxide and oxygen affords the corresponding thiocarbamates mostly in moderate to good yields under solvent-free conditions at ambient temperature. Copyright Taylor & Franci
New facile one-pot synthesis of S-alkyl thiolcarbamates from xanthogenate in water
A simple and efficient one-pot synthesis was developed for the preparation of S-alkyl thiolcarbamates from xanthogenate without catalyst using water as a solvent. The water can be recycled after removal of the product. The significant features of this protocol are: operational simplicity, mild reaction conditions, recycling of solvent and high product yields. Starting basic alkyl xanthogenate reacts with alkyl ammonium sulfate (aryl ammonium sulfate) and hydrogen peroxide (molar ratio 1:0.55:1) in water at 40 C for 1 h, followed by additional heating at 70-110 C for 1-2.3 h. Good to excellent yields were achieved using ammonium sulfate in 10 % molar excess. Graphical abstract: [Figure not available: see fulltext.]
Milosavljevic, Milutin M.,Mijin, Dusan Z.,Milisavljevic, Smiljka S.,Elezovic, Natasa M.,Milanovic, Jelena K.
p. 1833 - 1837
(2014/01/06)
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