ACID DISSOCIATION AND ACTIVATION PARAMETERS FOR RING INVERSION OF DIAMINOCALIX[4]ARENE

被引：14

作者：

ARAKI, K

MURAKAMI, H

OHSETO, F

SHINKAI, S

机构：

[1] KYUSHU UNIV, FAC ENGN, DEPT ORGAN SYNTH, FUKUOKA 812, JAPAN

[2] RES DEV CORP JAPAN, ERATO, CHEMIRECOGN PROJECT, FUKUOKA 818, JAPAN

来源：

CHEMISTRY LETTERS | 1992年 / 04期

关键词：

D O I：

10.1246/cl.1992.539

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

pK(a) Values and activation parameters for ring inversion of 25,27-diamino-5,11,17,23-tetra-t-butylcalix[4]arene-26,28-diol were estimated. It was found that in the OH groups of this compound the "super-acidic" proton, observed for conventional calix[4]arene-25,26,27,28-tetrols, no longer exists and ring inversion occurs more easily.

引用

页码：539 / 542

页数：4

共 7 条

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ARAKI, K ;

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[2] ACTIVATION PARAMETERS FOR CALIXARENE RING INVERSION AS DETERMINED BY COMPUTER-ASSISTED SPECTRUM SIMULATION [J].

ARAKI, K ;

SHINKAI, S ;

MATSUDA, T .

CHEMISTRY LETTERS, 1989, (04) :581-584

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