对烷基邻苯二酚的制备方法

Preparation method of p-alkyl catechol

Abstract

一种对烷基邻苯二酚的制备方法,包括将邻苯二酚与烷基化剂在负载型杂多酸催化剂存在下进行烷基化反应,所述的负载型杂多酸催化剂包括20~70质量%的杂多酸和30~80质量%的载体,所述的载体选自二氧化硅、活性炭或HZSM-5沸石,所述的烷基化剂为C4~C6的烯烃或C5~C8的醚。该法所用催化剂活性高,选择性好,产品质量好、收率高。
The invention relates to a preparation method of p-alkyl catechol; the method comprises the step of carrying out alkylation reaction on catechol and alkylating agent in the presence of a supported heteropoly acid catalyst, wherein the supported heteropoly acid catalyst comprises 20-70% of heteropoly acid and 30-80% of carrier by mass, the carrier is selected from silicon dioxide, activated carbon or HZSM-5 zeolite, and the alkylating agent is olefin with C4-C6 or ether with C5-C8. The catalyst used in the method has the advantages of high activity, good selectivity, good product quality and high yield.

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Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-101012155-AAugust 08, 2007湖南化工研究院对叔丁基邻苯二酚的合成方法
    CN-1351904-AJune 05, 2002北京燕山石油化工公司研究院沸石催化剂及制备4-叔丁基邻苯二酚的方法
    CN-1613559-AMay 11, 2005北京化工大学Preparation for hydrophobic solid acid catalyst
    CN-1768938-AMay 10, 2006中国石油化工股份有限公司, 中国石油化工股份有限公司上海石油化工研究院中孔结构的杂多酸/二氧化硅催化剂
    CN-87104109-AJanuary 20, 1988住友化学工业株式会社含羟基的烷基芳香族化合物的制备方法

NO-Patent Citations (1)

    Title
    BIJU M. DEVASSY ET AL.: "Alkylation of p-cresol with tert-butanol catalyzed by heteropoly acid supported on zirconia catalyst", 《JOURNAL OF MOLECULAR CATALYSIS A: CHEMICAL》, vol. 210, 31 December 2004 (2004-12-31), pages 125 - 130

Cited By (3)

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    CN-103553880-AFebruary 05, 2014天津瑞泰精细化工有限公司一种对叔丁基邻苯二酚的合成方法
    CN-103553880-BJuly 22, 2015天津瑞泰精细化工有限公司一种对叔丁基邻苯二酚的合成方法
    CN-104725195-AJune 24, 2015江苏三吉利化工股份有限公司Method for preparing o-cresol and 2, 6-xylenol by catalysis of heteropolyacid