ALIPHATIC FRIEDEL-CRAFTS REACTIONS .8. PREPARATION OF UNSATURATED KETONES BY ACYLATION OF 1-ALKYLCYCLOPENTENES

被引：18

作者：

GROVES, JK

JONES, N

机构：

[1] Chemistry and Metallurgy Department, Lanchester College of Technology

来源：

JOURNAL OF THE CHEMICAL SOCIETY C-ORGANIC | 1969年 / 04期

关键词：

D O I：

10.1039/j39690000608

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Reaction of 1-ethylcyclopentene with zinc chloride-acetic anhydride affords 5-acetyl-1-ethylcyclopentene (39%) and 1-acetyl-2-ethylidenecyclopentane (13%). Similar products are obtained in the acetylation of other n-alkyl- cyclopentenes, with the exception of 1-methylcyclopentene which yields a mixture of 5-acetyl-1-methylcyclopentene and 1-acetyl-2-methylcyclopentene in a ratio of ca. 3:2. Treatment of the initial acylation products with base in all cases afforded the corresponding 1-acyl-2-alkylcyclopentene.

引用

页码：608 / &

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