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Issue 6, 2016
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Synthesis of carbamates from amines and N-tosylhydrazones under atmospheric pressure of carbon dioxide without an external base

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Abstract

The methodology for the synthesis of carbamates via the base-promoted coupling of carbon dioxide, amines, and N-tosylhydrazones using potassium carbonate as the base and the pressure of 4 MPa of carbon dioxide has been published by Jiang et al. (2015). We demonstrated that this method provides the desired carbamates under just 1 atm of carbon dioxide without the addition of a base promoter. Thus, carbamates were successfully synthesized under mild reaction conditions in moderate to high yields.

Graphical abstract: Synthesis of carbamates from amines and N-tosylhydrazones under atmospheric pressure of carbon dioxide without an external base

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Article information


Submitted
23 Mar 2016
Accepted
17 Apr 2016
First published
19 Apr 2016

Org. Chem. Front., 2016,3, 764-767
Article type
Research Article

Synthesis of carbamates from amines and N-tosylhydrazones under atmospheric pressure of carbon dioxide without an external base

J. Y. Hong, U. R. Seo and Y. K. Chung, Org. Chem. Front., 2016, 3, 764
DOI: 10.1039/C6QO00111D

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