[1]ZHANG Yadong,CHU Jinchang,WANG Zhenxing,et al.A Solvent-free Method for ERL-4221 by Epoxidation of 3-Cyclohexenylmethyl3’-CyclOhexenecarboxylate with Hydrogen Peroxide[J].Journal of Zhengzhou University (Engineering Science),2009,30(04):58-61.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30卷
Number of periods:
2009年04期
Page number:
58-61
Column:
Public date:
1900-01-01
- Title:
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A Solvent-free Method for ERL-4221 by Epoxidation of 3-Cyclohexenylmethyl3’-CyclOhexenecarboxylate with Hydrogen Peroxide
- Author(s):
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ZHANG Yadong; CHU Jinchang; WANG Zhenxing; etc
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School of Chemical and Energy Engineering,Zhengzhou University,Zhengzhou 450001,China
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- Keywords:
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solvent—free method; epoxidation; 3-Cyclohexenylmethyl一3 7-Cyclohexenecarboxylate; 3; 4-Epoxycyclohexylmethyl一3’; 4’-Epoxycyclohexane Carboxylate
- CLC:
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- DOI:
-
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- Abstract:
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Chloromethylated polystyrene divinylbenzene grafted quaternary ammonium salt of phosphor—tungsticheteropoly acid had been prepared as acatalyst.The catalyst had been characterized by IR spectrum and inductively coupled plasma atomic emission spectrometry. 3,4-Epoxycyclohexylmethyl一3’,4’一EpoxycyclohexaneCarboxylate(A00)had been synthesized by epoxidation of 3一Cyelohexenylmethyl 3 7-Cyclohexeneearboxylate(A)with hydrogen peroxide(W(H202)=34.5%)as oxidant under organic solvent—free condition.The maininfluence factors in the reaction,such as mole ration of A to H2 02,reaction time,temperature,amounts ofcatalyst and SO on,had been studied.The appropriate reaction condition are as fallows(based on 60 mmolA):reaction temperature 65℃,reaction time 100 minutes,catalyst 5.0 g,n(A):n(H202)=1:3.Underthe condition.average conversion of A is more than 99%and average yield of AOO is 78.9%.The averagerecovery of catalyst is over 93%.