(Fluoroorgano)fluoroboranes and -borates. 16. Preparation of Bis(perfluoroalkyl)dimethoxyborate and Bis(perfluoroalkyl)difluoroborate Salts, M[(C<i><sub>n</sub></i>F<sub>2</sub><i><sub>n</sub></i><sub>+1</sub>)<sub>2</sub>BX<sub>2</sub>] (M = K, NMe<sub>4</sub>; X = OMe, F)
作者:Nicolay Yu. Adonin、Hermann-Josef Frohn、Vadim V. Bardin
DOI:10.1021/om070090h
日期:2007.4.1
bis(perfluoroalkyl)dimethoxyborate salts, K[(CnF2n+1)2B(OMe)2] (n = 3, 4, 6), were prepared in 60−76% yield by the reaction of (perfluoroalkyl)lithium with chlorodimethoxyborane and subsequent metathesis of the cation with KF. Reactions of K[(CnF2n+1)2B(OMe)2] with 42−73% aqueous HF resulted in the salts K[(CnF2n+1)2B(OR)F] (R = H, CH3), which were converted into K[(CnF2n+1)2BF2] by the treatment with anhydrous
通过(全氟烷基)的反应制得了双(全氟烷基)二甲氧基硼酸钾K [(C n F 2 n +1)2 B(OMe)2 ](n = 3、4、6),产率为60-76%。 )与氯二甲氧基硼烷合成锂,随后与KF复分解成阳离子。K [(C n F 2 n +1)2 B(OMe)2 ]与42-73%HF水溶液的反应生成盐K [(C n F 2 n +1)2 B(OR)F]( R = H,CH 3),将其转换为K [(C n F 2通过无水HF处理得到n +1) 2 BF 2 ]。钾盐与[NMe 4 ] OH在水中的复分解反应生成相应的硼酸盐[NMe 4 ] [(C n F 2 n +1) 2 BF 2 ]。