对甲基苯乙酸是一种重要的苯乙酸类化合物,广泛应用于医药、农药、香料和染料等领域。在精细化学品方面,不同取代基的酸是关键的化学实验底物,不仅是合成酯和酰胺的重要中间体,也是还原成醇和醛的关键底物,发挥着至关重要的作用。
制备方法
在-78℃下,将正丁基锂(2.4mL,2.5mol/L,1.2当量)滴加到4-甲基苯乙炔(580.8mg, 1.0当量)的四氢呋喃溶液(15mL)中反应1小时。随后,将异丙醇频哪醇硼酸酯(1.2mL, 1.2当量)滴加至混合溶液中,继续反应2小时。加入氯化氢的1,4-二氧六环溶液(1.9mL, 4M indioxane, 1.5当量)淬灭后,将温度升至室温并旋转蒸发溶剂。配制成0.3M丙酮溶液后,再加入过氧单磺酸钾溶液(0.5M, 4.6107g, 1.5当量)。转移至50℃中搅拌12小时,分离纯化即得纯度为74%的对甲基苯乙酸555.7mg。氢谱和碳谱数据如下:
用途
对甲基苯乙酸主要用于有机合成和制药工业。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
对甲苯基乙酸甲酯 | methyl p-tolylacetate | 23786-13-2 | C10H12O2 | 164.204 |
4-甲基苯基乙酸乙酯 | p-tolylacetic acid ethyl ester | 14062-19-2 | C11H14O2 | 178.231 |
2-(4-甲基苯基)乙醇 | 2-(p-methylphenyl)ethanol | 699-02-5 | C9H12O | 136.194 |
4-甲基苯乙醛 | 4-methylphenylacetaldehyde | 104-09-6 | C9H10O | 134.178 |
—— | tert.-Butyl-p-tolylperacetat | 27396-20-9 | C13H18O3 | 222.284 |
4-甲基苯基乙醛酸 | (4-methylphenyl)(oxo)acetic acid | 7163-50-0 | C9H8O3 | 164.161 |
4-甲苯基乙酸2,2,2-三氯乙酯 | 4-tolylacetic acid 2,2,2-trichloroethyl ester | 1255911-39-7 | C11H11Cl3O2 | 281.566 |
对甲苯乙酰氯 | 4-methylphenylacetyl chloride | 35675-44-6 | C9H9ClO | 168.623 |
—— | p.tolyl ethanethioate de S-methyle | 17293-68-4 | C10H12OS | 180.271 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
对甲苯基乙酸甲酯 | methyl p-tolylacetate | 23786-13-2 | C10H12O2 | 164.204 |
4-(羟甲基)苯醋酸 | 4-hydroxymethylphenylacetic acid | 73401-74-8 | C9H10O3 | 166.177 |
2-(4-甲酰基苯基)乙酸 | 2-(4-formylphenyl)acetic acid | 34841-47-9 | C9H8O3 | 164.161 |
4-(氯甲基)苯乙酸 | 4-chloromethylphenylacetic acid | 56066-91-2 | C9H9ClO2 | 184.622 |
4-(溴甲基)苯乙酸 | 4-bromophenylacetic acid | 13737-36-5 | C9H9BrO2 | 229.073 |
4-甲基苯基乙酸乙酯 | p-tolylacetic acid ethyl ester | 14062-19-2 | C11H14O2 | 178.231 |
2-(4-甲基苯基)乙醇 | 2-(p-methylphenyl)ethanol | 699-02-5 | C9H12O | 136.194 |
4-甲基苯乙醛 | 4-methylphenylacetaldehyde | 104-09-6 | C9H10O | 134.178 |
4-(羟基甲基)苯乙酸甲酯 | methyl 2-(4-(hydroxymethyl)phenyl)acetate | 155380-11-3 | C10H12O3 | 180.203 |
2-(4-甲基苯基)丙酸 | (R,S)-2-(4'-methylphenyl) propionic acid | 938-94-3 | C10H12O2 | 164.204 |
4-溴乙基苯乙酸甲酯 | methyl 2-(4-(bromomethyl)phenyl)acetate | 7398-42-7 | C10H11BrO2 | 243.1 |
—— | isopropyl 2-p-tolylacetate | 64450-64-2 | C12H16O2 | 192.258 |
—— | (4-methylaminomethyl-phenyl)-acetic acid methyl ester | 808753-05-1 | C11H15NO2 | 193.246 |
[4-(羟甲基)苯基]乙酸乙酯 | ethyl p-(hydroxy-methyl)-phenylacetate | 118618-41-0 | C11H14O3 | 194.23 |
对叔丁基苯乙酸甲酯 | t-butyl p-tolylacetate | 33155-60-1 | C13H18O2 | 206.285 |
—— | butyl (4-methylphenyl)acetate | 93578-99-5 | C13H18O2 | 206.285 |
2-(4-(溴甲基)苯基)乙酸乙酯 | ethyl 2-(4-(bromomethyl)phenyl)acetate | 7398-81-4 | C11H13BrO2 | 257.127 |
—— | trimethylsilyl 2-(4-tolyl)acetate | 934415-19-7 | C12H18O2Si | 222.359 |
—— | 2-(p-tolyl)acrylic acid | 66616-85-1 | C10H10O2 | 162.188 |
—— | tert.-Butyl-p-tolylperacetat | 27396-20-9 | C13H18O3 | 222.284 |
对甲基苯羟乙酸 | 4-methylmandelic acid | 31284-89-6 | C9H10O3 | 166.177 |
4-[(乙酰氧基)甲基]-苯乙酸 | 4-acetoxymethylphenylacetic acid | 61165-81-9 | C11H12O4 | 208.214 |
2-(2-溴-4-甲基-苯基)乙酸 | 2-bromo-2-(p-tolyl)acetic acid | 25297-16-9 | C9H9BrO2 | 229.073 |
乙酸-4-甲基苯乙酯 | 4-methylphenethyl acetate | 22532-47-4 | C11H14O2 | 178.231 |
2-甲基-2-对甲苯丙酸 | α-(p-Tolyl)-isobuttersaeure | 20430-18-6 | C11H14O2 | 178.231 |
—— | p-tolylacetyl bromide | 22535-04-2 | C9H9BrO | 213.074 |
4-(溴甲基)苯乙醇 | 2-(4-(bromomethyl)phenyl)ethanol | 96044-43-8 | C9H11BrO | 215.09 |
—— | (S)-2-(p-tolyl)propan-1-ol | 93922-51-1 | C10H14O | 150.221 |
—— | (R)-2-p-tolylpropan-1-ol | 122091-54-7 | C10H14O | 150.221 |
1-(2-(甲氧基甲氧基)乙基)-4-甲基苯 | 1-(2-(methoxymethoxy)ethyl)-4-methylbenzene | 1032509-65-1 | C11H16O2 | 180.247 |
2-(3-氨基-4-甲基苯基)乙酸 | 3-Amino-4-methyl-phenylessigsaeure | 54941-46-7 | C9H11NO2 | 165.192 |
—— | 1-(p-tolyl)propan-2-ol | 5040-23-3 | C10H14O | 150.221 |
4-甲基苯丙酮 | p-Tolylaceton | 2096-86-8 | C10H12O | 148.205 |
—— | p-tolyl-acetic acid dodecyl ester | 102456-03-1 | C21H34O2 | 318.5 |
—— | 2-(4-methylphenyl)propanal | 122091-53-6 | C10H12O | 148.205 |
2-(4-甲基苯基)乙酰胺 | 2-(p-tolyl)acetamide | 6212-86-8 | C9H11NO | 149.192 |
对甲苯乙酰氯 | 4-methylphenylacetyl chloride | 35675-44-6 | C9H9ClO | 168.623 |
—— | methyl <4-(acetoxymethyl)phenyl>acetate | 119991-78-5 | C12H14O4 | 222.241 |
—— | benzyl 2-(p-tolyl)acetate | 39749-79-6 | C16H16O2 | 240.302 |
2-(4-甲苯基)丙二醛 | 2-(4-methylphenyl)malondialdehyde | 27956-35-0 | C10H10O2 | 162.188 |
对甲基苄基对甲基苯乙酸酯 | p-methylbenzyl p-methylphenylacetate | 36707-18-3 | C17H18O2 | 254.329 |
—— | 3-amino p-tolylacetic acid | 37777-64-3 | C9H11NO2 | 165.192 |
alpha-乙基-4-甲基-苯乙酸 | 2-(p-tolyl)butanoic acid | 68692-82-0 | C11H14O2 | 178.231 |
2-羟基-4-甲基苯乙酸 | 2-(2-hydroxy-4-methylphenyl)acetic acid | 38692-77-2 | C9H10O3 | 166.177 |
—— | methyl 2-(p-tolyl)acrylate | —— | C11H12O2 | 176.215 |
—— | methyl 2-hydroxy-2-(p-tolyl)acetate | 13305-13-0 | C10H12O3 | 180.203 |
—— | methyl 4-methylphenylglyoxylate | 34966-53-5 | C10H10O3 | 178.188 |
1,1-二甲基-2-(4-甲苯基)-乙醇 | 2-methyl-1-(4-methylphenyl)-2-propanol | 20834-59-7 | C11H16O | 164.247 |
—— | methyl bromo(4-methylphenyl)acetate | 77053-52-2 | C10H11BrO2 | 243.1 |
—— | phenyl 2-(p-tolyl)acetate | 942293-63-2 | C15H14O2 | 226.275 |
—— | p-tolyl-acetic acid cyclopentyl ester | —— | C14H18O2 | 218.296 |
—— | 1,3-bis(4-methylphenyl)-2-propanone | 70769-70-9 | C17H18O | 238.329 |
1-(4-甲基苯基)-3-苯基丙烷-2-酮 | 1-p-tolyl-3-phenylacetone | 35730-02-0 | C16H16O | 224.302 |
1-(2-碘乙基)-4-甲基苯 | 1-(2-iodoethyl)-4-methylbenzene | 120391-67-5 | C9H11I | 246.091 |