Preparation of Cyclopentanol By Direct Hydration of Cyclopentene（Ⅱ）：Optimization of the Reaction

Abstract The preparation of cyclopentanol by direct hydration of cyclopentene was studied with strong acidic cation Amberlyst36 as catalyst and 1-butanol as solvent.The influences of reaction temperature，reaction time，cocatalyst type，the molar ratio of H₂O to cyclopentene and dosage of catalyst were studied.The optimum reaction conditions were obtained：molar ratio of H₂O to cyclopentene was 1∶4，dosage of catalyst was 9% of the total mass，reaction temperature 150 ℃，reaction time 2 h，the conversion of cyclopentene was 12.42%，and the selectivity to cyclopentanol was 95.78%.And in this condition the stability of the catalyst was investigated.The results showed that the catalyst was stable.

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	YANG Xiao-Hui
	SONG Jian
	WU Jie
	FENG Rong-Xiu

Keywords： cyclopentene strong acidic cation exchange resin cyclopentanol hydration stablility

Received 2011-09-06;

About author: 杨晓辉（1984-），男，山东烟台人，从事有机中间体合成研究。

Cite this article:

YANG Xiao-Hui, SONG Jian, WU Jie, FENG Rong-Xiu.Preparation of Cyclopentanol By Direct Hydration of Cyclopentene（Ⅱ）：Optimization of the Reaction[J] Chemcial Industry and Engineering, 2012,V29(01): 17-20