Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate
Isopropyl chloroacetate has been synthesized by esterification of chloroacetic acid and isopropanol, using lanthanum dodecyl sulfate (LDDS) as the catalyst. Various factors that affected the esterification have been investigated, such as reaction time, different water-carrying agent and the amount of catalyst. Under the condition of 1.2/1 molar ratio of isopropanol to chloroacetic acid, 1.0% catalyst (molar percent of chloroacetic acid), 2.5 h reaction time, 5 mL cyclohexane as water-carrying agent and reflux temperature, the esterification conversion of isopropyl chloroacetate reaches 98.3%. The catalytic activity of LDDS is almost equal to that of a BrÃnsted acid. LDDS, as one kind of water-tolerant Lewis acid, is an excellent catalyst compared to the traditional Lewis acid.
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Brazilian Society of Chemical Engineering
2011
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oai:scielo:S0104-663220110002000102011-07-04Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfateXu,JiashengZhang,JieYin,XiangyuYang,DongjiangZhang,HeQian,JianhuaLiu,LianliLiu,Xiaoyang Isopropyl chloroacetate Lanthanum dodecyl sulfate Esterification Water-tolerant Lewis acid FTIR Isopropyl chloroacetate has been synthesized by esterification of chloroacetic acid and isopropanol, using lanthanum dodecyl sulfate (LDDS) as the catalyst. Various factors that affected the esterification have been investigated, such as reaction time, different water-carrying agent and the amount of catalyst. Under the condition of 1.2/1 molar ratio of isopropanol to chloroacetic acid, 1.0% catalyst (molar percent of chloroacetic acid), 2.5 h reaction time, 5 mL cyclohexane as water-carrying agent and reflux temperature, the esterification conversion of isopropyl chloroacetate reaches 98.3%. The catalytic activity of LDDS is almost equal to that of a BrÃnsted acid. LDDS, as one kind of water-tolerant Lewis acid, is an excellent catalyst compared to the traditional Lewis acid.info:eu-repo/semantics/openAccessBrazilian Society of Chemical EngineeringBrazilian Journal of Chemical Engineering v.28 n.2 20112011-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200010en10.1590/S0104-66322011000200010 |
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Xu,Jiasheng Zhang,Jie Yin,Xiangyu Yang,Dongjiang Zhang,He Qian,Jianhua Liu,Lianli Liu,Xiaoyang |
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Xu,Jiasheng Zhang,Jie Yin,Xiangyu Yang,Dongjiang Zhang,He Qian,Jianhua Liu,Lianli Liu,Xiaoyang Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
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Xu,Jiasheng Zhang,Jie Yin,Xiangyu Yang,Dongjiang Zhang,He Qian,Jianhua Liu,Lianli Liu,Xiaoyang |
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Xu,Jiasheng |
title |
Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
title_short |
Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
title_full |
Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
title_fullStr |
Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
title_full_unstemmed |
Esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
title_sort |
esterification process to synthesize isopropyl chloroacetate catalyzed by lanthanum dodecyl sulfate |
description |
Isopropyl chloroacetate has been synthesized by esterification of chloroacetic acid and isopropanol, using lanthanum dodecyl sulfate (LDDS) as the catalyst. Various factors that affected the esterification have been investigated, such as reaction time, different water-carrying agent and the amount of catalyst. Under the condition of 1.2/1 molar ratio of isopropanol to chloroacetic acid, 1.0% catalyst (molar percent of chloroacetic acid), 2.5 h reaction time, 5 mL cyclohexane as water-carrying agent and reflux temperature, the esterification conversion of isopropyl chloroacetate reaches 98.3%. The catalytic activity of LDDS is almost equal to that of a BrÃnsted acid. LDDS, as one kind of water-tolerant Lewis acid, is an excellent catalyst compared to the traditional Lewis acid. |
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Brazilian Society of Chemical Engineering |
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2011 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000200010 |
work_keys_str_mv |
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