常温常压下,不会分解。
苯甲酰甲酸(Benzoylformic acid),又称苯乙酮酸(Phenylglyoxylic acid),是一种无色晶体,熔点为66℃,沸点为147.5℃(1.6kPa),能在水中及醇、醚和热四氯化碳中溶解。它广泛应用于合成多种医药和农药。
近年来,研究人员发现苯甲酰甲酸还能作为荧光材料的敏化剂和有机氧化反应的催化剂,使其成为一种极具潜力的有机合成中间体。
制备在水溶液中,以重铬酸钠-硫酸为氧化剂,将扁桃酸氧化成苯甲酰甲酸。具体工艺流程如下:
该方法工艺简单且产品质量优良,是国内主要的苯甲酰甲酸生产方式。然而由于扁桃酸价格较高及产生的废水量多的问题,现今已改进工艺流程:先将扁桃酸酯化处理,在硫酸亚铁催化下滴加重铬酸钠-硫酸混合液氧化反应,以获得苯甲酰甲酸酯。此法改进后收率可达85%,且大大减少了废水排放。
生物活性苯甲酰甲酸(Benzoylformate, Phenylglyoxylic acid, Phenylglyoxylate)是化学合成领域中一种重要的结构单元,常用于合成药物中间体或食品添加剂。它具有无色晶体的特性,熔点为66℃,沸点为147.5℃(1.6kPa),在常压下蒸馏会分解,并且能溶于水、酸、醚和热四氯化碳。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯甲酰甲酸甲酯 | Methyl benzoylformate | 15206-55-0 | C9H8O3 | 164.161 |
苯甲酰甲酸乙酯 | Ethyl benzoylformate | 1603-79-8 | C10H10O3 | 178.188 |
2-羟基苯乙酮 | 1-phenyl-2-hydroxyethanone | 582-24-1 | C8H8O2 | 136.15 |
苯基丙醇水合物 | Phenylglyoxal | 1074-12-0 | C8H6O2 | 134.134 |
—— | allyl 2-oxo-2-phenylacetate | 62936-34-9 | C11H10O3 | 190.199 |
3,4-二羟基苯乙酮 | 2,2-dihydroxy-1-phenyl-ethanone | 1075-06-5 | C8H8O3 | 152.15 |
—— | tert-butyl phenylglyoxylate | 7332-98-1 | C12H14O3 | 206.241 |
苯乙酸 | phenylacetic acid | 103-82-2 | C8H8O2 | 136.15 |
苯乙酮 | acetophenone | 98-86-2 | C8H8O | 120.151 |
alpha-氧代苯乙酰胺 | 2-oxo-2-phenylacetamide | 7505-92-2 | C8H7NO2 | 149.149 |
—— | methyl (S)-2-(benzoylformyloxy)propionate | —— | C12H12O5 | 236.224 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯甲酰甲酸甲酯 | Methyl benzoylformate | 15206-55-0 | C9H8O3 | 164.161 |
—— | Benzoylameisensaeure | —— | C8H6O3 | 151.126 |
对氟苯基草酸 | 2-(4-fluorophenyl)-2-oxoacetic acid | 2251-76-5 | C8H5FO3 | 168.124 |
苯甲酰甲酸乙酯 | Ethyl benzoylformate | 1603-79-8 | C10H10O3 | 178.188 |
—— | propyl 2-oxo-2-phenylacetate | 31197-63-4 | C11H12O3 | 192.214 |
—— | methyl (p-fluorobenzoyl)formate | 156276-23-2 | C9H7FO3 | 182.151 |
异丙基氧代(苯基)乙酸酯 | isopropyl benzoylformate | 31197-66-7 | C11H12O3 | 192.214 |
—— | allyl 2-oxo-2-phenylacetate | 62936-34-9 | C11H10O3 | 190.199 |
—— | prop-2-yn-1-yl 2-oxo-2-phenylacetate | 96550-29-7 | C11H8O3 | 188.183 |
—— | phenethyl 2-oxo-2-phenylacetate | 244263-79-4 | C16H14O3 | 254.285 |
2-溴乙基-2-氧代-2-苯基乙酸酯 | 2-bromoethyl 2-oxo-2-phenylacetate | 25315-30-4 | C10H9BrO3 | 257.084 |
—— | 2-chloroethyl 2-oxo-2-phenylacetate | 22964-15-4 | C10H9ClO3 | 212.633 |
—— | oxo-phenyl-acetic acid 2-methoxy-ethyl ester | 96747-12-5 | C11H12O4 | 208.214 |
—— | butyl 2-oxo-2-phenylacetate | 5524-55-0 | C12H14O3 | 206.241 |
—— | iso-butyl 2-oxo-2-phenylacetate | 31197-67-8 | C12H14O3 | 206.241 |
—— | oxo-phenyl-acetic acid 2-(2-methoxy-ethoxy)-ethyl ester | —— | C13H16O5 | 252.267 |
—— | 1-benzoyl-1(trimethylsiloxy)ethylene | 55517-36-7 | C11H14O3Si | 222.316 |
—— | (E)-but-2-enyl 2-oxo-2-phenylacetate | 655243-55-3 | C12H12O3 | 204.225 |
—— | tert-butyl phenylglyoxylate | 7332-98-1 | C12H14O3 | 206.241 |
—— | 2-Methylsulfanylethyl 2-oxo-2-phenylacetate | 188647-06-5 | C11H12O3S | 224.28 |
—— | pentyl 2-oxo-2-phenylacetate | 31197-64-5 | C13H16O3 | 220.268 |
alpha-氧代-苯乙酸 2,2-二甲基丙基酯 | neopentyl phenylglyoxylate | 101128-42-1 | C13H16O3 | 220.268 |
—— | Oxo-phenyl-acetic acid 5-methoxy-pentyl ester | 197573-05-0 | C14H18O4 | 250.295 |
—— | iso-pentyl 2-oxo-2-phenylacetate | 31221-84-8 | C13H16O3 | 220.268 |
—— | hexyl 2-oxo-2-phenylacetate | 31197-65-6 | C14H18O3 | 234.295 |
—— | 2-Ethylsulfanylethyl 2-oxo-2-phenylacetate | 188647-07-6 | C12H14O3S | 238.307 |
—— | 3-methylbut-2-en-1-yl 2-oxo-2-phenylacetate | —— | C13H14O3 | 218.252 |
—— | 2-Dimethylaminoethyl-phenylglyoxylat | 29236-53-1 | C12H15NO3 | 221.256 |
—— | decyl 2-oxo-2-phenylacetate | —— | C18H26O3 | 290.403 |
—— | octyl 2-oxo-2-phenylacetate | —— | C16H22O3 | 262.349 |
—— | (Z)-3-hexenyl 2-oxo-2-phenylacetate | 143618-83-1 | C14H16O3 | 232.279 |
—— | 4-Methylpent-3-enyl 2-oxo-2-phenylacetate | 143618-85-3 | C14H16O3 | 232.279 |
—— | sec-butyl phenylglyoxylate | 95653-53-5 | C12H14O3 | 206.241 |
—— | phenyl-glyoxylic acid-(2-methyl-butyl ester) | 96606-31-4 | C13H16O3 | 220.268 |
—— | 2-methylallyl 2-oxo-2-phenylacetate | 1360924-17-9 | C12H12O3 | 204.225 |
—— | 1-methyl-2-propenyl 2-oxo-2-phenylacetate | —— | C12H12O3 | 204.225 |
苯乙酸 | phenylacetic acid | 103-82-2 | C8H8O2 | 136.15 |
—— | cyclopropylmethyl benzoylformate | —— | C12H12O3 | 204.225 |
—— | 10-undecenyl 2-oxo-2-phenylacetate | —— | C19H26O3 | 302.414 |
—— | (Z)-3-nonenyl 2-oxo-2-phenylacetate | —— | C17H22O3 | 274.36 |
—— | benzyl oxo(phenyl)acetate | 62977-82-6 | C15H12O3 | 240.258 |
—— | (Z)-9-undecenyl 2-oxo-2-phenylacetate | —— | C19H26O3 | 302.414 |
—— | (E)-9-undecenyl 2-oxo-2-phenylacetate | —— | C19H26O3 | 302.414 |
—— | (Z)-4-dodecenyl 2-oxo-2-phenylacetate | —— | C20H28O3 | 316.441 |
—— | (S)-2-hydroxypropiophenone | —— | C9H10O2 | 150.177 |
(R)-安息香 | (R)-2-hydroxy-1-phenylpropan-1-one | 65646-06-2 | C9H10O2 | 150.177 |
—— | Oxo-phenyl-acetic acid 2-ethanesulfinyl-ethyl ester | 188647-15-6 | C12H14O4S | 254.307 |
—— | 3-phenyl-2-propenyl 2-oxo-phenylacetate | 655243-53-1 | C17H14O3 | 266.296 |
氧代(苯基)乙酰氯 | benzoylformyl chloride | 25726-04-9 | C8H5ClO2 | 168.579 |
—— | 4-methylbenzyl 2-oxo-2-phenylacetate | —— | C16H14O3 | 254.285 |
—— | Phenylglyoxylsaeure-<1-methyl-pentylester> | 92103-66-7 | C14H18O3 | 234.295 |
苯乙酮 | acetophenone | 98-86-2 | C8H8O | 120.151 |
alpha-氧代苯乙酰胺 | 2-oxo-2-phenylacetamide | 7505-92-2 | C8H7NO2 | 149.149 |
—— | cyclopentyl 2-oxo-2-phenylacetate | —— | C13H14O3 | 218.252 |
—— | 3-Phenylmethoxypropyl 2-oxo-2-phenylacetate | 143618-78-4 | C18H18O4 | 298.339 |
—— | phenyl 2-oxo-2-phenylacetate | 62936-35-0 | C14H10O3 | 226.232 |
—— | phenylglyoxylic acid-((R)-1-methyl-heptyl ester) | 93163-81-6 | C16H22O3 | 262.349 |
—— | phenylglyoxylic acid-((S)-1-methyl-heptyl ester) | 93163-81-6 | C16H22O3 | 262.349 |
联苯甲酰 | benzil | 134-81-6 | C14H10O2 | 210.232 |
—— | (+/-)-3,7-dimethyloct-6-enyl 2-oxo-2-phenylacetate | 191750-82-0 | C18H24O3 | 288.387 |
alpha-氧代-苯乙酸环己基酯 | cyclohexyl 2-oxo-2-phenylacetate | 61598-01-4 | C14H16O3 | 232.279 |
—— | (Z)-3,7-dimethyl-2,6-octadienyl 2-oxo-2-phenylacetate | —— | C18H22O3 | 286.371 |
—— | 2,6-dimethyl-5-heptenyl 2-oxo-2-phenylacetate | —— | C17H22O3 | 274.36 |
—— | 2-Phenylsulfanylethyl 2-oxo-2-phenylacetate | 197861-98-6 | C16H14O3S | 286.351 |
—— | Oxo-phenyl-acetic acid ((Z)-hex-3-enyl)oxycarbonylmethyl ester | 185519-44-2 | C16H18O5 | 290.316 |
—— | 4-cyanobenzyl 2-oxo-2-phenylacetate | —— | C16H11NO3 | 265.268 |
二苯基乙酮 | phenyl benzyl ketone | 451-40-1 | C14H12O | 196.249 |
—— | methyl (S)-2-(benzoylformyloxy)propionate | —— | C12H12O5 | 236.224 |
The conversion of α-oximino acids (anti HO— —COOH) to nitriles in aqueous solution is shown to be a general reaction. α-Keto acids are converted to nitriles in excellent yield in aqueous solution in the presence of hydroxylamine. Oxidation of α-oximino acids yields hydroxamic acids.