POLYFLUOROORGANOBORON-OXYGEN COMPOUNDS. 7+. STUDIES OF CONVERSION OF [(C6HnF5-n)B(OMe)3]- INTO [(C6HnF5-n)2B(OMe)2]- (n=0, 1)

被引：8

作者：

Adonin, Nicolai Yu. ^{[1
]}

Bardin, Vadim V. ^{[2
]}

Frohn, Hermann-Josef ^{[3
]}

机构：

[1] Russian Acad Sci, Siberian Branch, GK Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Russian Acad Sci, Siberian Branch, NN Vorozhtsov Novosibirsk Inst Organ Chem, Novosibirsk 630090, Russia

[3] Univ Duisburg Essen, Dept Chem Inorgan Chem, D-47048 Duisburg, Germany

来源：

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 2008年 / 73卷 / 12期

关键词：

Polyfluorophenyltrimethoxyborate; Bis(polyfluorophenyl)dimethoxyborate; Polyfluorobenzene derivatives; F-19 NMR spectroscopy; Organoborate salts;

D O I：

10.1135/cccc20081681

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Conversion of salts Li[(C6HnF5-n)B(OMe)(3)] (n = 0, 1) into (Li center dot DME)[(C6HnF5-n)(2)B(OMe)(2)] was studied in dichloromethane-DME solution. The observed rate constants k decrease from (21.4 +/- 0.9) x 10(-3) l mol(-1) s(-1) (Li[C6F5B(OMe)(3)]) over (6.99 +/- 0.11) x 10(-3) l mol(-1) s(-1) (Li[(2,3,5,6-C6HF4)B(OMe)(3)]) to (2.94 +/- 0.05) x 10(-3) l mol(-1) s(-1) (Li[(2,3,4,6-C6HF4)B(OMe)(3)]), while Li[(2,3,4,5-C6HF4)B(OMe)(3)] does not undergo any transformation. Hydrolysis of (Li center dot DME)[(C6HnF5-n)(2)B(OMe)(2)] leads to corresponding borinic acids, whereas treatment of them with aqueous solution of M[HF2] (M = Bu4N, K) acidified with HF results in M[(C6HnF5-n)(2)BF2] in high yields.

引用

页码：1681 / 1692

页数：12

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