CATALYTIC CYCLIZATION OF ACETYLENE AND SUBSTITUTED ACETYLENES TO AROMATIC HYDROCARBONS

被引：36

作者：

DANDLIKER, G

机构：

[1] Ciba A Ktiengesellschaft, Basel

来源：

HELVETICA CHIMICA ACTA | 1969年 / 52卷 / 06期

关键词：

D O I：

10.1002/hlca.19690520608

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The pentahalogenides of niobium and tantalum and some tungsten chlorides catalize the cyclotrimerization of acetylenic hydrocarbons to form aromatic compounds. Acetylene is converted into benzene at atmospheric pressure and temperatures between — 20 and 130°C. Under similar conditions methylacetylene and but‐1‐yne respectively yield a mixture of the corresponding 1,2,4‐ and 1,3,5‐substituted benzenes while with but‐2‐yne hexamethyl benzene is obtained. Cocyclization between acetylene and substituted acetylenes or diacetylene is possible; in this case mono‐ and disubstituted benzenes or biphenyl, terphenyl, and polyphenyls are formed. Copyright © 1969 Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1482 / +

页数：1

共 15 条

[1]

BAILES P, 1960, Patent No. 847915

[2]

DANDLIKER G, 1965, Patent No. 3178487

[3]

DANDLIKER G, 1964, Patent No. 3125610

[4] THE FLUORIDES OF NIOBIUM, TANTALUM, TUNGSTEN, AND RHENIUM [J].