Citation: Bo Wang, Jing He, Run Cang Sun. Carbamate synthesis from amines and dialkyl carbonate over inexpensive and clean acidic catalyst-Sulfamic acid[J]. Chinese Chemical Letters, ;2010, 21(7): 794-797. doi: 10.1016/j.cclet.2010.03.012 shu

Carbamate synthesis from amines and dialkyl carbonate over inexpensive and clean acidic catalyst-Sulfamic acid

Bo Wang ^a, ,
Jing He ^a ,
Run Cang Sun ^a,b

a Institute of Biomass Chemistry and Technology, College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China;
b State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China

Received Date: 6 November 2009

Fund Project: Financial supports from the Beijing Forestry University Excellent Young Scientist Fund (No. BLYX200904), National Innovation Experiment Program for University Students (No. 091002234) and Major State Basic Research Development Program of China (973 Program, No. 2010CB732204) are gratefully acknowledged. We wish to thank Prof. Run-Hua Lu and Prof. Li-Ming Yang for much useful criticism during the preparation of this paper and for many interesting and helpful discussions.

Sulfamic acid has been proved to be the most efficient and recyclable catalyst in carbamate synthesis from alkylamine and dialkyl carbonate. High selectivity, cost-efficiency and simple product separation were the advantageous features obtained in this process. Sulfamic acid could be reused several times and keep its initial activity in the recycle runs. In addition, sulfamic acid has also exhibited the potential catalytic ability for alkylation of aromatic amines.
- Sulfamic acid,
- Acidic catalysis,
- Carbamate,
- Alkylamine,
- Dimethyl carbonate
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