A catalyst-free novel synthesis of diethyl carbonate from ethyl carbamate in supercritical ethanol

Li Cai Zhao; Zhi Qiang Hou; Chun Ze Liu; Yuan Yuan Wang; Li Yi Dai

doi:10.1016/j.cclet.2014.05.012

A catalyst-free novel synthesis of diethyl carbonate from ethyl carbamate in supercritical ethanol

Li Cai Zhao
, Zhi Qiang Hou
, Chun Ze Liu
, Yuan Yuan Wang^*
, Li Yi Dai

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

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

10 Scopus citations

Abstract

Diethyl carbonate has been synthesized via the alcoholysis of ethyl carbamate in supercritical ethanol under catalyst-free conditions. The influences of various parameters such as reaction temperature, reaction time, reaction pressure, ethanol/ethyl molar ratios and reaction loading volume on the yield of DEC were studied systematically. The experimental results indicated that the alcoholysis of ethyl carbamate was greatly improved in supercritical ethanol. The optimal reaction conditions were as follows: a reaction temperature of 573 K, a reaction time of 30 min, a reaction pressure of 13.2 MPa, an ethanol/ethyl carbamate molar ratio of 10 and a reactor loading volume of 285 μL respectively. The optimal yield of DEC was 22.9%.

Original language	English
Pages (from-to)	1395-1398
Number of pages	4
Journal	Chinese Chemical Letters
Volume	25
Issue number	10
DOIs	https://doi.org/10.1016/j.cclet.2014.05.012
State	Published - Oct 2014

Keywords

Alcoholysis
Diethyl carbonate
Ethyl carbamate
Supercritical ethanol

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10.1016/j.cclet.2014.05.012

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@article{7945fbc817a7463fb813cfba610be431,

title = "A catalyst-free novel synthesis of diethyl carbonate from ethyl carbamate in supercritical ethanol",

abstract = "Diethyl carbonate has been synthesized via the alcoholysis of ethyl carbamate in supercritical ethanol under catalyst-free conditions. The influences of various parameters such as reaction temperature, reaction time, reaction pressure, ethanol/ethyl molar ratios and reaction loading volume on the yield of DEC were studied systematically. The experimental results indicated that the alcoholysis of ethyl carbamate was greatly improved in supercritical ethanol. The optimal reaction conditions were as follows: a reaction temperature of 573 K, a reaction time of 30 min, a reaction pressure of 13.2 MPa, an ethanol/ethyl carbamate molar ratio of 10 and a reactor loading volume of 285 μL respectively. The optimal yield of DEC was 22.9\%.",

keywords = "Alcoholysis, Diethyl carbonate, Ethyl carbamate, Supercritical ethanol",

author = "Zhao, \{Li Cai\} and Hou, \{Zhi Qiang\} and Liu, \{Chun Ze\} and Wang, \{Yuan Yuan\} and Dai, \{Li Yi\}",

year = "2014",

month = oct,

doi = "10.1016/j.cclet.2014.05.012",

language = "英语",

volume = "25",

pages = "1395--1398",

journal = "Chinese Chemical Letters",

issn = "1001-8417",

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TY - JOUR

T1 - A catalyst-free novel synthesis of diethyl carbonate from ethyl carbamate in supercritical ethanol

AU - Zhao, Li Cai

AU - Hou, Zhi Qiang

AU - Liu, Chun Ze

AU - Wang, Yuan Yuan

AU - Dai, Li Yi

PY - 2014/10

Y1 - 2014/10

N2 - Diethyl carbonate has been synthesized via the alcoholysis of ethyl carbamate in supercritical ethanol under catalyst-free conditions. The influences of various parameters such as reaction temperature, reaction time, reaction pressure, ethanol/ethyl molar ratios and reaction loading volume on the yield of DEC were studied systematically. The experimental results indicated that the alcoholysis of ethyl carbamate was greatly improved in supercritical ethanol. The optimal reaction conditions were as follows: a reaction temperature of 573 K, a reaction time of 30 min, a reaction pressure of 13.2 MPa, an ethanol/ethyl carbamate molar ratio of 10 and a reactor loading volume of 285 μL respectively. The optimal yield of DEC was 22.9%.

AB - Diethyl carbonate has been synthesized via the alcoholysis of ethyl carbamate in supercritical ethanol under catalyst-free conditions. The influences of various parameters such as reaction temperature, reaction time, reaction pressure, ethanol/ethyl molar ratios and reaction loading volume on the yield of DEC were studied systematically. The experimental results indicated that the alcoholysis of ethyl carbamate was greatly improved in supercritical ethanol. The optimal reaction conditions were as follows: a reaction temperature of 573 K, a reaction time of 30 min, a reaction pressure of 13.2 MPa, an ethanol/ethyl carbamate molar ratio of 10 and a reactor loading volume of 285 μL respectively. The optimal yield of DEC was 22.9%.

KW - Alcoholysis

KW - Diethyl carbonate

KW - Ethyl carbamate

KW - Supercritical ethanol

UR - https://www.scopus.com/pages/publications/84922514919

U2 - 10.1016/j.cclet.2014.05.012

DO - 10.1016/j.cclet.2014.05.012

M3 - 文章

AN - SCOPUS:84922514919

SN - 1001-8417

VL - 25

SP - 1395

EP - 1398

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

IS - 10

ER -

A catalyst-free novel synthesis of diethyl carbonate from ethyl carbamate in supercritical ethanol

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Keywords

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