THERMAL EQUILIBRATION OF SUBSTITUTED BICYCLO[2.1.0]PENTANES

被引：25

作者：

JORGENSON, MJ

CLARK, TJ

CORN, J

机构：

[1] Department of Chemistry, University of California, Berkeley

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1968年 / 90卷 / 25期

关键词：

D O I：

10.1021/ja01027a023

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The kinetics and position of equilibrium of the thermal isomerization IIa ⇄ IIb and IIIa ═ IIb were investigated in the temperature range of 140-160°. Substituents at C5 accelerate the equilibration reaction by factors of 3-16 in II and III compared with I. The effect of the methyl bridgehead substituent in III amounts to a rate increase over that for II, by factors of 8 and 15 for the pairs IIIa-IIa and IIIb–IIb, respectively. Activation parameters for compounds I, II, and III are compared and mechanistic conjectures are made. © 1968, American Chemical Society. All rights reserved.

引用

页码：7020 / +

页数：1

共 31 条

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