AZULENE ANALOGS OF TRIPHENYLMETHYL CATION - EXTREMELY STABLE HYDROCARBON CARBOCATIONS

被引：38

作者：

ITO, S ^{[1
]}

MORITA, N ^{[1
]}

ASAO, T ^{[1
]}

机构：

[1] TOHOKU UNIV,COLL GEN EDUC,DEPT CHEM,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

TETRAHEDRON LETTERS | 1991年 / 32卷 / 06期

关键词：

D O I：

10.1016/S0040-4039(00)74883-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of azulene analogues of triphenylmethyl cation; tri(1-azulenyl)-methyl cation, di(1-azulenyl)phenylmethyl cation, (1-azulenyl)diphenylmethyl cation, and their methyl and methoxycarbonyl derivatives were synthesized. Their pK(R+) values showed that the stability of these cations dramatically increases with the number of azulene rings, and the pK(R+) values of tri(1-azulenyl)methyl cation (11.3) and its trimethyl derivative (11.4) are the highest ever reported for methyl cations substituted with hydrocarbon groups.

引用

页码：773 / 776

页数：4

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