Study on the Synthesis of Cyclohexanone from Cyclohexanol Catalyzed by TEMPO

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Study on the Synthesis of Cyclohexanone from Cyclohexanol Catalyzed by TEMPO

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[1]ZHANG Yadong,MA Jinling.Study on the Synthesis of Cyclohexanone from Cyclohexanol Catalyzed by TEMPO[J].Journal of Zhengzhou University (Engineering Science),2015,36(06):10-.[doi:10.3969/j.issn.1671-6833.2015.06.003]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 36 Number of periods: 2015 06 Page number: 10- Column: Public date: 2015-12-25

Title:: Study on the Synthesis of Cyclohexanone from Cyclohexanol Catalyzed by TEMPO

Author(s):: ZHANG Yadong; MA Jinling; School of Chemical and Energy Engineering,Zhengzhou University, Zhengzhou 450001 , China

Keywords:: cyclohexanol; cyclohexanone; 2; 2; 6; 6-tetramethylpiperidine-1-oxyl

CLC:: TQ234.21

DOI:: 10.3969/j.issn.1671-6833.2015.06.003

Abstract:: This paper establishes a metal-free catalytic system comprising 2,2,6,6-etramethylpiperidine-l-ox-yl(TEMPO),NaClO and NaBr,catalytic oxidation of cyclohexanol to cyclohexanone. This paper studies theeffects of reaction time,pH,the dosage of the catalysts and solvent and so on. The optimum reaction condi-tions are as follows: cyclohexanol 0.3 g,TEMPO 0.005 g,NaBr 0.03 g,NaCIO 0.45 g,CH Cl,7 mL,pH9.1 and the reaction time 1 h.Three parallel experiments were performed under this condition,the averageconversition of cyclohexanol was 88.2%,and the average yield of cyclohexanone could reach 87.3%.

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