N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate

Xianlei Fu; Zhan Zhang; Caimeng Li; Libing Wang; Haiying Ji; Yu Yang; Ting Zou; Guohua Gao

doi:10.1016/j.catcom.2008.11.012

N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate

Xianlei Fu, Zhan Zhang, Caimeng Li, Libing Wang, Haiying Ji, Yu Yang, Ting Zou, Guohua Gao

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

A procedure for the synthesis of N-heterocyclic carbamates from N-heterocycles and dimethyl carbonate catalyzed by ionic liquids was investigated. [Bmim]OH was found to be the most active catalyst among the applied ionic liquids. Effects of the amount of ionic liquid, reaction temperature and the reusability of ionic liquid were also investigated. Ninety six percentage yield and 100% selectivity were obtained under the optimal conditions when using indole as a reactant. Additionally, [Bmim]OH can be reused at least up to four times without any decrease of activity. The possible reaction mechanism was discussed based on the reaction results.

Original language	English
Pages (from-to)	665-668
Number of pages	4
Journal	Catalysis Communications
Volume	10
Issue number	5
DOIs	https://doi.org/10.1016/j.catcom.2008.11.012
State	Published - 25 Jan 2009

Keywords

Carbamates
Dimethyl carbonate
Ionic liquid
Mechanism

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10.1016/j.catcom.2008.11.012

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title = "N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate",

abstract = "A procedure for the synthesis of N-heterocyclic carbamates from N-heterocycles and dimethyl carbonate catalyzed by ionic liquids was investigated. [Bmim]OH was found to be the most active catalyst among the applied ionic liquids. Effects of the amount of ionic liquid, reaction temperature and the reusability of ionic liquid were also investigated. Ninety six percentage yield and 100\% selectivity were obtained under the optimal conditions when using indole as a reactant. Additionally, [Bmim]OH can be reused at least up to four times without any decrease of activity. The possible reaction mechanism was discussed based on the reaction results.",

keywords = "Carbamates, Dimethyl carbonate, Ionic liquid, Mechanism",

author = "Xianlei Fu and Zhan Zhang and Caimeng Li and Libing Wang and Haiying Ji and Yu Yang and Ting Zou and Guohua Gao",

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T1 - N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate

AU - Fu, Xianlei

AU - Zhang, Zhan

AU - Li, Caimeng

AU - Wang, Libing

AU - Ji, Haiying

AU - Yang, Yu

AU - Zou, Ting

AU - Gao, Guohua

PY - 2009/1/25

Y1 - 2009/1/25

N2 - A procedure for the synthesis of N-heterocyclic carbamates from N-heterocycles and dimethyl carbonate catalyzed by ionic liquids was investigated. [Bmim]OH was found to be the most active catalyst among the applied ionic liquids. Effects of the amount of ionic liquid, reaction temperature and the reusability of ionic liquid were also investigated. Ninety six percentage yield and 100% selectivity were obtained under the optimal conditions when using indole as a reactant. Additionally, [Bmim]OH can be reused at least up to four times without any decrease of activity. The possible reaction mechanism was discussed based on the reaction results.

AB - A procedure for the synthesis of N-heterocyclic carbamates from N-heterocycles and dimethyl carbonate catalyzed by ionic liquids was investigated. [Bmim]OH was found to be the most active catalyst among the applied ionic liquids. Effects of the amount of ionic liquid, reaction temperature and the reusability of ionic liquid were also investigated. Ninety six percentage yield and 100% selectivity were obtained under the optimal conditions when using indole as a reactant. Additionally, [Bmim]OH can be reused at least up to four times without any decrease of activity. The possible reaction mechanism was discussed based on the reaction results.

KW - Carbamates

KW - Dimethyl carbonate

KW - Ionic liquid

KW - Mechanism

UR - https://www.scopus.com/pages/publications/58149336789

U2 - 10.1016/j.catcom.2008.11.012

DO - 10.1016/j.catcom.2008.11.012

M3 - 文章

AN - SCOPUS:58149336789

SN - 1566-7367

VL - 10

SP - 665

EP - 668

JO - Catalysis Communications

JF - Catalysis Communications

IS - 5

ER -

N-heterocyclic carbomethoxylation catalyzed by ionic liquids in the presence of dimethyl carbonate

Abstract

Keywords

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