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 |
2,3,4,5,6-五氟苯甲酸 | Pentafluorobenzoic acid | 602-94-8 | C7HF5O2 | 212.076 |
2,3,4,5-四氟苯甲酸 | 2,3,4,5-tetrafluorobenzoic acid | 1201-31-6 | C7H2F4O2 | 194.085 |
—— | 2,3,4,5,6-pentafluoro-2'-<(methylsulfonyl)oxy>toluene | 111196-49-7 | C8H5F5O3S | 276.184 |
—— | 2,3,4,5,6-pentafluorobenzyl acrylate | 153614-61-0 | C10H5F5O2 | 252.141 |
—— | Propanoic acid pentafluorobenzyl ester | 21634-97-9 | C10H7F5O2 | 254.156 |
—— | (pentafluorophenyl)ylmethyl sulfamate | 1306748-10-6 | C7H4F5NO3S | 277.172 |
(2,3,4,5,6-五氟苯基)甲基丁酸酯 | Butanoic acid pentafluorobenzyl ester | 21634-99-1 | C11H9F5O2 | 268.183 |
—— | 2-Methylpropanoic acid pentafluorobenzyl ester | 21634-98-0 | C11H9F5O2 | 268.183 |
—— | benzoic acid pentafluorobenzyl ester | 21635-04-1 | C14H7F5O2 | 302.2 |
—— | Pentanoic acid pentafluorobenzyl ester | 21635-00-7 | C12H11F5O2 | 282.21 |
五氟苯甲醛 | perfluorobenzaldehyde | 653-37-2 | C7HF5O | 196.076 |
—— | Pentafluorobenzyl hexanoate | 21635-01-8 | C13H13F5O2 | 296.237 |
—— | Succinic acid pentafluorobenzyl ester | —— | C18H8F10O4 | 478.243 |
(2,3,4,5,6-五氟苯基)甲基十二烷酸酯 | Dodecanoic acid pentafluorobenzyl ester | 21635-07-4 | C19H25F5O2 | 380.398 |
—— | Octanoic acid pentafluorobenzyl ester | 21635-03-0 | C15H17F5O2 | 324.291 |
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 |
—— | 2,3,5,6-tetrafluoro-4-(hydroxymethyl)benzoic acid | 107900-84-5 | C8H4F4O3 | 224.112 |
—— | 2,3,4,5,6-pentafluorobenzyl fluoride | 22006-43-5 | C7H2F6 | 200.083 |
—— | 4-amino-2,3,5,6-tetrafluorobenzyl alcohol | 17078-34-1 | C7H5F4NO | 195.116 |
—— | pentafluorobenzyl 3-phenylpropanoate | 62434-95-1 | C16H11F5O2 | 330.254 |
—— | 2,3,4,5,6-pentafluorobenzyl 2-methyl-3-oxobutanoate | 1003014-19-4 | C12H9F5O3 | 296.194 |
2,3,4,5,6-五氟苯乙胺 | 2-(2,3,4,5,6-pentafluorophenyl)ethan-1-amine | 1583-76-2 | C8H6F5N | 211.134 |
5-氟苯乙睛 | (pentafluorophenyl)acetonitrile | 653-30-5 | C8H2F5N | 207.103 |
2-(五氟苯基)乙醇 | 2-(pentafluorophenyl)ethanol | 653-31-6 | C8H5F5O | 212.119 |
—— | 1-benzyl-2,3,4,5,6-pentafluorobenzene | 7484-19-7 | C13H7F5 | 258.191 |
—— | 1,2,3,4,5-pentafluoro-6-(4-fluorobenzyl)benzene | 1234340-41-0 | C13H6F6 | 276.181 |
—— | O-(2,3,4,5,6-pentafluorobenzyl)-N,N'-diisopropylisourea | —— | C14H17F5N2O | 324.294 |
4-甲氧基-2,3,5,6-四氟苯甲醇 | (2,3,5,6-tetrafluoro-4-methoxyphenyl)methanol | 35175-79-2 | C8H6F4O2 | 210.128 |
—— | 4-methylthio-2,3,5,6-tetrafluorobenzyl alcohol | 106666-01-7 | C8H6F4OS | 226.195 |
—— | 4-hydrazino-2,3,5,6-tetrafluorobenzyl alcohol | 121038-08-2 | C7H6F4N2O | 210.131 |
1,2,3,4,5-五氟-6-[2-(2,3,4,5,6-五氟苯基)乙基]苯 | 2,2',3,3',4,4',5,5',6,6'-decafluorobibenzyl | 853-74-7 | C14H4F10 | 362.17 |
2-(2,3,4,5,6-五氟苯基)乙酰胺 | 2.3.4.5.6-Pentafluor-phenylacetamid | 653-20-3 | C8H4F5NO | 225.118 |
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.