Syntheses of lipophilic tetraarylborate ions substituted with many perfluoroalkyl groups and their stability under acid conditions

被引：13

作者：

Fujiki, K

Ichikawa, J

Kobayashi, H

Sonoda, A

Sonoda, T ^{[1
]}

机构：

[1] Kyushu Univ, Inst Adv Mat Study, Kasuga, Fukuoka 816, Japan

[2] Kyushu Univ, Grad Sch Engn Sci, Kasuga, Fukuoka 816, Japan

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2000年 / 102卷 / 1-2期

关键词：

weakly coordinating anions; perfluoroalkyl-substituted tetraarylborate ions; syntheses; lipophilicity; stability;

D O I：

10.1016/S0022-1139(99)00291-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Syntheses are investigated on several new kinds of perfluoroalkyl-substituted tetraarylborate ions such as tetrakis(3,5-bis(nonafluorobutyl)phenyl)borate, tetrakis(3,5-bis(heptafluoro-2-propyl)phenyl)borate (PFPB), tetrakis(3-(heptafluoro-2-propyl)-1-(trifluoromethyl)phenyl)borate, and tetrakis(3-(heptafluoro-2-propyl)phenyl))borate. Solubilities of tetramethylammonium tetraarylborates in some hydrophobic halocarbon solvents and rate constants of acid-catalyzed decomposition of the tetraarylborate ions in methanolic sulfuric acid solutions and in dichloromethane/aqueous sulfuric acid two-phase system are determined. Trifluoromethyl- and perfluoroalkyl-substituent effects on the lipophilicity and chemical stability of the tetraarylborate ions are discussed in comparisons with a range of those described previously. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：293 / 300

页数：8

共 19 条

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