化学性质
本品是一种无色固体,熔点为37~38℃,沸点为114~115℃/8kPa,不溶于水,能溶解于苯、醇等有机溶剂。
用途
2,3,4,5,6-五氟苄醇是卫生用杀虫剂五氟苯菊酯的中间体,同时在医药、农药和液晶材料领域也作为重要中间体使用。
生产方法
该产品的制备方法为:将2,3,4,5,6-五氟苯甲酸在锌电极作用下于5%硫酸溶液中进行流动床电解,从而得到所需产品。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3,4,5,6-五氟甲苯 | 2,3,4,5,6-pentafluorotoluene | 771-56-2 | C7H3F5 | 182.093 |
2,3,4,5,6-五氟苯甲酸 | Pentafluorobenzoic acid | 602-94-8 | C7HF5O2 | 212.076 |
五氟苯甲酸甲酯 | methyl pentafluorobenzoate | 36629-42-2 | C8H3F5O2 | 226.103 |
五氟苯甲醛 | perfluorobenzaldehyde | 653-37-2 | C7HF5O | 196.076 |
2,3,4,5,6-五氟苄基氯 | 2,3,4,5,6-pentafluorobenzyl chloride | 653-35-0 | C7H2ClF5 | 216.538 |
α-溴-2,3,4,5,6-五氟甲基苯酸酯 | (bromomethyl)pentafluorobenzene | 1765-40-8 | C7H2BrF5 | 260.989 |
(五氟苯基)甲胺 | 2,3,4,5,6-pentafluorobenzylamine | 1548-77-2 | C7H4F5N | 197.107 |
2,3,4,5,6-五氟苯甲酸酐 | pentafluorobenzoic anhydride | 15989-99-8 | C14F10O3 | 406.136 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3,4,5-四氟苯甲醇 | 2,3,4,5-tetrafluorobenzyl alcohol | 53072-18-7 | C7H4F4O | 180.102 |
2,3,5,6-四氟苯甲醇 | 2,3,5,6-tetrafluorobenzyl alcohol | 4084-38-2 | C7H4F4O | 180.102 |
—— | 1-(methoxymethyl)-2,3,4,5,6-pentafluorobenzene | 66286-23-5 | C8H5F5O | 212.119 |
—— | bis-perfluorobenzyl ether | —— | C14H4F10O | 378.169 |
—— | Methanoic acid pentafluorobenzyl ester | —— | C8H3F5O2 | 226.103 |
—— | 2-methyl-3,4,5,6-tetrafluorobenzyl alcohol | —— | C8H6F4O | 194.129 |
2,3,4,5,6-五氟甲苯 | 2,3,4,5,6-pentafluorotoluene | 771-56-2 | C7H3F5 | 182.093 |
—— | pentafluorophenylmethoxytrimethylsilane | 1189949-29-8 | C10H11F5OSi | 270.274 |
—— | Ethanoic acid pentafluorobenzyl ester | 2002-93-9 | C9H5F5O2 | 240.13 |
2,3,4,5,6-五氟氯甲酸苄酯 | pentafluorobenzyl chlorocarbonate | 53526-74-2 | C8H2ClF5O2 | 260.548 |
A very efficient procedure for the protection of alcohols and phenols is presented. The mixture of 1,1,1,3,3,3-hexamethyldisilazane (HMDS) and catalytic amounts of poly(4-vinylpyridinium tribromide) was found to be effective for the trimethylsilylation of alcohols and phenols. Protection reaction is very simple and performs heterogeneously in acetonitrile at room temperature under mild conditions.