The hydration and isomerization of alpha-pinene over zeolite beta. A new coupling reaction between alpha-pinene and ketones

被引：46

作者：

vanderWaal, JC ^{[1
]}

vanBekkum, H ^{[1
]}

Vital, JM ^{[1
]}

机构：

[1] UNIV NOVA LISBOA,DEPT QUIM,P-2825 MONTE DE CAPARICA,PORTUGAL

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1996年 / 105卷 / 03期

关键词：

zeolite beta; alpha-pinene; isomerization; hydration; C-C coupling reaction; alpha-terpinyl acetone;

D O I：

10.1016/1381-1169(95)00244-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic potential of zeolite H-beta in the hydration and isomerization of cr-pinene was investigated. In the presence of water the main product is the monocyclic alcohol alpha-terpineol (48%) though selectivity towards bicyclic terpenes is higher than observed for sulphuric acid (26% vs. 5.5%). When the isomerization is performed in pure acetone, a new compound forms by a novel C-C coupling reaction between alpha-pinene and acetone. The product is identified as alpha-terpinyl acetone. This coupling seems to be a general reaction between alpha-pinene and ketones and is catalyzed exclusively by zeolite beta.

引用

页码：185 / 192

页数：8

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