Influence of phenolic compounds on the Mo(CO)6 catalysed metathetical reactions of alkynes

被引：20

作者：

Vosloo, HCM ^{[1
]}

du Plessis, JAK ^{[1
]}

机构：

[1] Potchefstroom Univ Christian Higher Educ, SASOL Ctr Chem, ZA-2520 Potchefstroom, South Africa

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1998年 / 133卷 / 1-2期

关键词：

phenylacetylene; metathetical reaction; alkynes;

D O I：

10.1016/S1381-1169(98)00089-2

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：

Factors influencing the polymerisation of phenylacetylene in the presence of the Mo(CO)(6)/C6H5OH catalytic system are not limited only to a C6H5OH/Mo molar ratio greater than or equal to 100 and reaction temperatures > 110 degrees C, but include the availability of a phenolic compound with an unassociated hydroxyl group and the use of a nonpolar solvent. In the presence of aliphatic alcohols as cocatalysts the activity of the catalytic system is greatly reduced. Terminal alkynes polymerise in the presence of the Mo(CO)(6)/C6H5OH catalytic system at 120 degrees C while internal alkynes undergo metathesis and/or polymerisation depending on the bulkiness of the alkyl groups attached to the triple bond. A metal carbene mechanism is supported. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：205 / 211

页数：7

共 16 条

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