对甲氧基苯乙酮是一种具有芳香气味的化合物,带有甜味、果香、坚果味及类似香草的味道。它有时还散发出类似于黄油或焦糖的气息。在室温下,它是白色至淡黄色的固体结晶。当加热融化时,这些白色晶体会变成透明液体。
该化合物常被用作香烟添加剂、香料以及食品调味剂。天然海狸香(即海狸的腺分泌液)中也含有对甲氧基苯乙酮。通过对甲醚和乙酰氯进行傅-克反应可合成此化合物。
含量分析根据醛和酮测定法(OT-7),采用方法一(羟胺法)进行测定,需要取1g试样。计算中的当量因子(e)为67.09。或者可以通过气相色谱法(GT-10-4)中使用非极性柱的方法来测定。
毒性对甲氧基苯乙酮的ADI值为1 mg/kg(CE)。其LD50值在大鼠口服时为1400 mg/kg。
使用限量根据FEMA标准,不同食品中的允许用量分别为:软饮料1.1 mg/kg;冷饮1.6 mg/kg;糖果5.2 mg/kg;焙烤食品4.9 mg/kg;胶姆糖870 mg/kg;调味品5.8 mg/kg;马拉斯金樱桃8.0 mg/kg。适度为限(FDA §172.515,2000)。
食品添加剂最大允许使用量及残留标准对甲基苯乙酮作为一种食品香料,在GB 2760中被允许用于配制各种香精时不得超过其在GB 2760中的最大允许使用量和最大允许残留量。
化学性质对甲氧基苯乙酮是一种无色或接近无色的油状液体,低温下会凝固。它具有强烈的山楂香气、水果和花香,类似于苯乙酮的味道。其沸点为226℃,熔点-23℃,闪点96℃。该化合物易溶于乙醇和大多数非挥发性油中,微溶于丙二醇和矿物油中,而不溶于甘油和水中。
天然来源天然存在的对甲氧基苯乙酮存在于玫瑰木精油、含羞草花油等多种精油中。
用途GB 2760 1996规定该化合物可以作为食用香料用于多种食品。主要应用于杏仁、果仁、樱桃、香卓和草莓等类型的香精中。
生产方法对甲氧基苯乙酮可通过将干燥的甲苯与粉状无水三氯化铝在搅拌下滴加乙酐,加热至90℃,反应生成大量氯化氢气体。当不再产生氯化氢时冷却后,将其倒入碎冰和浓盐酸混合物中,直至铝盐全部溶解。分离甲苯层并用水洗涤,用10%的氢氧化钠溶液洗至碱性,再用水洗。经无水硫酸镁干燥后进行减压蒸馏,收集93-94℃(0.93kPa)馏分即得产物。改进的方法是将等摩尔量的三氯化铝与乙酰氯(或乙酐)在加热情况下结合,再向其中滴入溶于二硫碳的甲苯溶液。
另一种生产方法另一种制备对甲氧基苯乙酮的方法是先制成缩氨脲,然后用10%草酸水溶液分解后经水蒸气蒸馏得到纯品。此过程也可通过乙酰基氯、甲苯和三氯化铝的反应来实现。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,4-二乙酰苯 | 1,4-Diacetylbenzene | 1009-61-6 | C10H10O2 | 162.188 |
苯乙酮 | acetophenone | 98-86-2 | C8H8O | 120.151 |
2-溴-4'-甲基苯乙酮 | 4-(bromoacetyl)toluene | 619-41-0 | C9H9BrO | 213.074 |
2-氟-1-(4-甲基苯基)乙酮 | 2-fluoro-1-(4-methylphenyl)ethanone | 37032-34-1 | C9H9FO | 152.168 |
—— | 1-(4-methylphenyl)prop-2-yn-1-one | 14377-18-5 | C10H8O | 144.173 |
对甲基-2-氯乙酰苯 | p-methylphenacyl chloride | 4209-24-9 | C9H9ClO | 168.623 |
2-羟基-1-(4-甲基苯基)乙酮 | 2-hydroxy-1-p-tolyl-ethanone | 4079-54-3 | C9H10O2 | 150.177 |
乙酮,2,2-二溴-1-(4-甲基苯基)- | 2,2-dibromo-1-(4-methylphenyl)ethanone | 13664-98-7 | C9H8Br2O | 291.97 |
(4-乙酰基苯基)乙酸 | 2-(4-acetylphenyl)acetic acid | 7398-52-9 | C10H10O3 | 178.188 |
1-(4-甲基苯基)-3-丁烯-1-酮 | 1-(p-tolyl)but-3-en-1-one | 130649-66-0 | C11H12O | 160.216 |
1-苯基-2-丙炔-1-酮 | benzoylacetylene | 3623-15-2 | C9H6O | 130.146 |
4'-三氟甲基苯乙酮 | 1-(4-trifluoromethylphenyl)ethanone | 709-63-7 | C9H7F3O | 188.149 |
—— | 2-(dimethylamino)-1-(p-tolyl)ethan-1-one | 80354-58-1 | C11H15NO | 177.246 |
4-甲基苯戊酮 | n-butyl p-tolyl ketone | 1671-77-8 | C12H16O | 176.258 |
2-叠氮基-1-(4-甲基苯基)乙酮 | 2-azido-1-(4-methylphenyl)ethan-1-one | 6595-30-8 | C9H9N3O | 175.19 |
对氯苯乙酮 | para-chloroacetophenone | 99-91-2 | C8H7ClO | 154.596 |
4-溴苯乙酮 | para-bromoacetophenone | 99-90-1 | C8H7BrO | 199.047 |
对羟基苯乙酮 | 4-Hydroxyacetophenone | 99-93-4 | C8H8O2 | 136.15 |
4-氟苯乙酮 | 1-(4-Fluorophenyl)ethanone | 403-42-9 | C8H7FO | 138.141 |
4-甲基苯乙酮硫氰酸酯 | 2-thiocyanato-1-(4-tolyl)ethanone | 6097-27-4 | C10H9NOS | 191.254 |
4-碘代苯乙酮 | 4-Iodoacetophenone | 13329-40-3 | C8H7IO | 246.047 |
—— | 3,3-dimercapto-1-(p-methylphenyl)-2-propen-1-one | 50850-01-6 | C10H10OS2 | 210.321 |
对甲基苯甲醛 | 4-methyl-benzaldehyde | 104-87-0 | C8H8O | 120.151 |
4-乙基甲苯 | 4-methylethylbenzene | 622-96-8 | C9H12 | 120.194 |
1,3-二(4-甲基苯基)丙烷-1,3-二酮 | 1,3-bis(p-methylphenyl)-1,3-propanedione | 3594-36-3 | C17H16O2 | 252.313 |
1-甲基苯基乙酮 | 2-Methylacetophenone | 577-16-2 | C9H10O | 134.178 |
—— | dimethyl p-acetylbenzyl phosphite | 181465-68-9 | C11H15O4P | 242.211 |
—— | 3-oxo-3-p-toluoylpropanoic acid | 13422-78-1 | C10H10O3 | 178.188 |
trans-3-(4-甲基苯甲酰)丙烯酸 | (E)-4-oxo-4-(p-tolyl)but-2-enoic acid | 20972-36-5 | C11H10O3 | 190.199 |
—— | 4-(p-methylphenyl)-4-oxo-2-butenoic acid | —— | C11H10O3 | 190.199 |
2-(4-甲基苯基)-2-氧代乙酸乙酯 | 2-oxo-2-(4-tolyl)ethyl acetate | 65143-37-5 | C11H12O3 | 192.214 |
—— | 2-((2-oxo-2-(p-tolyl)ethyl)thio)acetic acid | 153783-84-7 | C11H12O3S | 224.28 |
—— | 3-phenyl-1-p-tolylprop-2-en-1-one | 4224-96-8 | C16H14O | 222.287 |
对甲基苯乙胺 | 2-(p-tolyl)ethylamine | 3261-62-9 | C9H13N | 135.209 |
对甲氧基苯乙酮 | 1-(4-methoxyphenyl)ethanone | 100-06-1 | C9H10O2 | 150.177 |
3-苯基-1-对甲苯丙酮 | 1-(4-methylphenyl)-3-phenylprop-2-yn-1-one | 20442-65-3 | C16H12O | 220.271 |
1-(2-溴-4-甲基苯基)乙酮 | 2-bromo-4-methylacetophenone | 103286-27-7 | C9H9BrO | 213.074 |
4-异丙基甲苯 | 4-methylisopropylbenzene | 99-87-6 | C10H14 | 134.221 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-乙酰苯甲醛 | p-formylacetophenone | 3457-45-2 | C9H8O2 | 148.161 |
苯乙酮 | acetophenone | 98-86-2 | C8H8O | 120.151 |
2-(4-乙酰基苯基)乙腈 | 2-(4-acetylphenyl)acetonitrile | 10266-42-9 | C10H9NO | 159.188 |
2-溴-4'-甲基苯乙酮 | 4-(bromoacetyl)toluene | 619-41-0 | C9H9BrO | 213.074 |
4-(羟基甲基)苯乙酮 | 4-(hydroxymethyl)acetophenone | 75633-63-5 | C9H10O2 | 150.177 |
1-[4-(氯甲基)苯基]乙酮 | 1-(4-(chloromethyl)phenyl)ethan-1-one | 54589-56-9 | C9H9ClO | 168.623 |
4-甲基苯甲酰甲醛水合物 | 4'-tolylglyoxal | 1075-47-4 | C9H8O2 | 148.161 |
2-氨基-4’-甲基苯乙酮 | p-Methyl-phenacylamin | 69872-37-3 | C9H11NO | 149.192 |
—— | 1-(4-(fluoromethyl)phenyl)ethan-1-one | —— | C9H9FO | 152.168 |
对氰基苯乙酮 | 4-cyanophenyl methyl ketone | 1443-80-7 | C9H7NO | 145.161 |
1-(4-(溴甲基)苯基)乙酮 | 4-acetylbenzyl bromide | 51229-51-7 | C9H9BrO | 213.074 |
2-氟-1-(4-甲基苯基)乙酮 | 2-fluoro-1-(4-methylphenyl)ethanone | 37032-34-1 | C9H9FO | 152.168 |
对甲基苯丙酮 | 4'-methylpropiophenone | 5337-93-9 | C10H12O | 148.205 |
—— | 2-mercapto-1-(p-tolyl)ethan-1-one | 23081-11-0 | C9H10OS | 166.244 |
4-乙酰基联苄 | 4-phenethylacetophenone | 785-78-4 | C16H16O | 224.302 |
—— | 2-iodo-1-(4-methylphenyl)ethanone | 40805-62-7 | C9H9IO | 260.074 |
1-(4-甲基苯基)丙-2-烯-1-酮 | 1-(4-methylphenyl)prop-2-en-1-one | 19832-78-1 | C10H10O | 146.189 |
对甲基-2-氯乙酰苯 | p-methylphenacyl chloride | 4209-24-9 | C9H9ClO | 168.623 |
2-羟基-1-(4-甲基苯基)乙酮 | 2-hydroxy-1-p-tolyl-ethanone | 4079-54-3 | C9H10O2 | 150.177 |
4'-丁基苯乙酮 | 1-(4-butylphenyl)ethanone | 37920-25-5 | C12H16O | 176.258 |
—— | 1-(4-(2,2,2-trifluoroethyl)phenyl)ethan-1-one | 197312-65-5 | C10H9F3O | 202.176 |
4-乙酰基苯甲酸 | 4-acetyl-benzoic acid | 586-89-0 | C9H8O3 | 164.161 |
—— | 4-(4-acetylphenyl)butanenitrile | —— | C12H13NO | 187.241 |
1-(4-(二氟甲基)苯基)乙酮 | 1-(4-(difluoromethyl)phenyl)ethanone | 179990-93-3 | C9H8F2O | 170.159 |
乙酮,2,2-二溴-1-(4-甲基苯基)- | 2,2-dibromo-1-(4-methylphenyl)ethanone | 13664-98-7 | C9H8Br2O | 291.97 |
—— | p-methylhydroxyiminoacetophenone | —— | C9H9NO2 | 163.176 |
—— | 4-methyl-2-(hydroxyimino)acetophenone | 17628-76-1 | C9H9NO2 | 163.176 |
—— | p-tolylglyoxalmonoxime | 17628-76-1 | C9H9NO2 | 163.176 |
2,4'-二甲基苯丙酮 | 4'-methylisobutyrophenone | 50390-51-7 | C11H14O | 162.232 |
—— | 3-oxo-3-p-tolyl-propionaldehyde | 14377-02-7 | C10H10O2 | 162.188 |
1-[4-(二溴甲基)苯基]乙酮 | p-acetyl α,α-dibromotoluene | 877378-15-9 | C9H8Br2O | 291.97 |
对甲苯酰乙腈 | p-tolueneacetonitrile | 7391-28-8 | C10H9NO | 159.188 |
2,2-二氟-1-(4-甲基苯基)-乙酮 | 2,2-difluoro-1-(p-tolyl)ethan-1-one | 704-36-9 | C9H8F2O | 170.159 |
(4-乙酰基苯基)乙酸 | 2-(4-acetylphenyl)acetic acid | 7398-52-9 | C10H10O3 | 178.188 |
—— | 3-hydroxy-1-(p-tolyl)propan-1-one | 33348-72-0 | C10H12O2 | 164.204 |
1-(4-甲基苯基)丁-2-烯-1-酮 | (E)-1-(4-methylphenyl)-2-buten-1-one | 3837-95-4 | C11H12O | 160.216 |
—— | 1‐(4‐methylphenyl)‐2‐(methylsulfanyl)ethanone | 24437-54-5 | C10H12OS | 180.271 |
2-甲氧基-1-(4-甲基苯基)乙酮 | 2-methoxy-1-(p-tolyl)ethan-1-one | 64591-47-5 | C10H12O2 | 164.204 |
3-氯-4’-甲基苯丙酮 | 4'-methyl-3-chloropropiophenone | 22422-21-5 | C10H11ClO | 182.65 |
3-溴-1-(4-甲基苯基)丙烷-1-酮 | 3-bromo-1-(p-tolyl)propan-1-one | 33994-09-1 | C10H11BrO | 227.101 |
(Z)-2-偶氮基-1-(4-甲基苯基)乙烯醇 | 2-diazo-1-(4-methylphenyl)ethanone | 17263-64-8 | C9H8N2O | 160.175 |
—— | 4,4'-diacetylstilbene | 6536-02-3 | C18H16O2 | 264.324 |
3-氯-1-(4-甲基苯基)丙-2-烯-1-酮 | (E)-3-chloro-1-(4-methylphenyl)-2-propenone | 41124-45-2 | C10H9ClO | 180.634 |
—— | (E)-1,1'-(ethene-1,2-diylbis(4,1-phenylene))diethanone | 6536-02-3 | C18H16O2 | 264.324 |
—— | 4-acetylstilbene | 3112-03-6 | C16H14O | 222.287 |
2,2-二氯-4’-甲基苯乙酮 | 2,2-dichloro-4'-methylacetophenone | 4974-59-8 | C9H8Cl2O | 203.068 |
4-甲基苯基乙二醛水合物 | 2,2-dihydroxy-1-(p-tolyl)ethanone | 16208-14-3 | C9H10O3 | 166.177 |
2-溴-1-[4-(溴甲基)苯基]乙酮 | 1'-bromo-4-(bromomethyl)acetophenone | 62546-51-4 | C9H8Br2O | 291.97 |
—— | 3-oxo-3-p-tolyl-propionaldehyde | 17451-27-3 | C10H10O2 | 162.188 |
—— | 1,1'-[ethyne-1,2-diylbis(4,1-phenylene)]diethanone | 29619-42-9 | C18H14O2 | 262.308 |
—— | 1-(4-(azidomethyl)phenyl)ethan-1-one | 223513-47-1 | C9H9N3O | 175.19 |
—— | 4-oxo-4-(p-tolyl)butanal | 62506-81-4 | C11H12O2 | 176.215 |
4-甲基苯戊酮 | n-butyl p-tolyl ketone | 1671-77-8 | C12H16O | 176.258 |
—— | 2-(dimethylamino)-1-(p-tolyl)ethan-1-one | 80354-58-1 | C11H15NO | 177.246 |
2,2-二甲基-1-(4-甲基苯基)丙-1-酮 | 2,2-dimethyl-1-(4-methylphenyl)-1-propanone | 30314-44-4 | C12H16O | 176.258 |
2-叠氮基-1-(4-甲基苯基)乙酮 | 2-azido-1-(4-methylphenyl)ethan-1-one | 6595-30-8 | C9H9N3O | 175.19 |
1-(4-甲基苯基)戊-4-烯-1-酮 | 1-(p-tolyl)pent-4-en-1-one | 26954-31-4 | C12H14O | 174.243 |
—— | 2-(4-methylphenyl)ethanonyl ethyl sulfide | 115505-08-3 | C11H14OS | 194.298 |
—— | α-ethoxy-p-methylacetophenone | 14869-40-0 | C11H14O2 | 178.231 |
4'-甲基-3-苯基苯丙酮 | 4-methylphenyl phenethyl ketone | 5012-90-8 | C16H16O | 224.302 |
1,3-二(4-甲基苯基)-1-丙酮 | 1,3-di-p-tolylpropan-1-one | 20615-46-7 | C17H18O | 238.329 |
4-氧代-4-甲苯基丁腈 | 4-oxo-4-(p-tolyl)butanenitrile | 55234-57-6 | C11H11NO | 173.214 |
4-甲基-2-苯基苯乙酮 | 2-phenyl-1-p-tolyl-ethanone | 2001-28-7 | C15H14O | 210.276 |
—— | d3-4-methylacetophenone | 128599-53-1 | C9H10O | 137.154 |
1-对甲苯基己-1-酮 | 1-(p-tolyl)hexan-1-one | 1669-33-6 | C13H18O | 190.285 |
3,3-二氯-1-(4-甲基苯基)丙-2-烯-1-酮 | 3,3-dichloro-1-(p-tolyl)prop-2-en-1-one | 41501-68-2 | C10H8Cl2O | 215.079 |
—— | 1,2-di-p-tolyl-ethanone | 51490-06-3 | C16H16O | 224.302 |
—— | 5-phenyl-1-(p-tolyl)pentan-1-one | —— | C18H20O | 252.356 |
4-甲基苯乙酮硫氰酸酯 | 2-thiocyanato-1-(4-tolyl)ethanone | 6097-27-4 | C10H9NOS | 191.254 |
—— | 2-oxo-2-(p-tolyl)ethyl formate | 357943-48-7 | C10H10O3 | 178.188 |
—— | 2-Isothiocyanato-1-p-tolylethanone | 925006-23-1 | C10H9NOS | 191.254 |
—— | 1-(4-methylphenyl)-4-phenyl-1,4-butanedione | 40794-87-4 | C17H16O2 | 252.313 |
1,4-双(4-甲基苯基)丁烷-1,4-二酮 | 1,4-bis(4-tolyl)butane-1,4-dione | 13145-56-7 | C18H18O2 | 266.34 |
—— | 3,3-dimercapto-1-(p-methylphenyl)-2-propen-1-one | 50850-01-6 | C10H10OS2 | 210.321 |
4-乙酰基苯甲酸甲酯 | dimethylterephtalate | 3609-53-8 | C10H10O3 | 178.188 |
(4-乙酰基苯基)乙酸甲酯 | methyl 2-(4-acetylphenyl)acetate | 20051-06-3 | C11H12O3 | 192.214 |
—— | 1,5-di-p-tolylpentane-1,5-dione | 5333-22-2 | C19H20O2 | 280.367 |
2-溴-4'-甲基苯丙酮 | 2-bromo-4'-methylpropiophenone | 1451-82-7 | C10H11BrO | 227.101 |
—— | 1,6-di-p-tolylhexane-1,6-dione | 6280-00-8 | C20H22O2 | 294.393 |
—— | 5-oxo-5-(p-tolyl)pentanenitrile | 88636-41-3 | C12H13NO | 187.241 |
2-(2-氧代-2-对甲苯基-乙硫基)-1-对甲苯基-乙酮 | bis(2-(4-methylphenyl)ethanonyl)sulfide | 23080-22-0 | C18H18O2S | 298.406 |
—— | 1-(p-tolyl)nonan-1-one | 168432-71-1 | C16H24O | 232.366 |
对甲基苯甲醛 | 4-methyl-benzaldehyde | 104-87-0 | C8H8O | 120.151 |
2-(4-甲基苯基)-2-氧代乙酰胺 | 2-oxo-2-(p-tolyl)acetamide | 69374-78-3 | C9H9NO2 | 163.176 |
—— | 2-bromo-2-fluoro-1-(p-tolyl)ethan-1-one | 201206-40-8 | C9H8BrFO | 231.064 |
—— | 3,3,3-trifluoro-1-(p-tolyl)propan-1-one | 121194-34-1 | C10H9F3O | 202.176 |
3-(4-甲基苯基)-1-苯基-1-丙酮 | 1-phenyl-3-(4-tolyl)propan-1-one | 1669-50-7 | C16H16O | 224.302 |
4-甲基苯基乙醛酸 | (4-methylphenyl)(oxo)acetic acid | 7163-50-0 | C9H8O3 | 164.161 |
—— | 2-bromo-2-chloro-1-(p-tolyl)ethan-1-one | 96222-32-1 | C9H8BrClO | 247.519 |
—— | 4’-(acetoxymethyl)acetophenone | 95827-11-5 | C11H12O3 | 192.214 |
—— | 4-Methyl-1-(4-methylphenyl)-3-penten-1-on | 88299-58-5 | C13H16O | 188.269 |
4-乙基甲苯 | 4-methylethylbenzene | 622-96-8 | C9H12 | 120.194 |
1-(4-甲基苯基)-3-苯基-1,3-丙烷二酮 | 1-(4-methylphenyl)-3-phenyl-1,3-propanedione | 25855-99-6 | C16H14O2 | 238.286 |
—— | (E)-3-(dimethylamino)-1-p-tolylprop-2-en-1-one | 18103-98-5 | C12H15NO | 189.257 |
—— | 3-dimethylamino-1-(4-methyl-phenyl)-2-propen-1-one | 18103-98-5 | C12H15NO | 189.257 |
—— | ditoluylethylene | 5465-41-8 | C18H16O2 | 264.324 |
1,3-二(4-甲基苯基)丙烷-1,3-二酮 | 1,3-bis(p-methylphenyl)-1,3-propanedione | 3594-36-3 | C17H16O2 | 252.313 |
—— | (E)-1-phenyl-4-(p-tolyl)but-2-ene-1,4-dione | 107487-78-5 | C17H14O2 | 250.297 |
(4-甲基苯基)(氧代)乙酰氯 | 2-oxo-2-(p-tolyl)acetyl chloride | 105457-91-8 | C9H7ClO2 | 182.606 |
—— | (Z)-1-phenyl-4-(p-tolyl)but-2-ene-1,4-dione | 22862-56-2 | C17H14O2 | 250.297 |