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茉莉酮

茉莉酮

CAS号:488-10-8
英文名:Jasmone
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化合物简介
Jasmone is a natural organic compound extracted from the volatile portion of the oil from jasmine flowers. It is a colorless to pale yellow liquid that has the odor of jasmine. Jasmone can exist in two isomeric forms with differing geometry around the pentenyl double bond, cis-jasmone and trans-jasmone. The natural extract contains only the cis form, while synthetic material is often a mixture containing both forms, with the cis form predominating. Both forms have similar odors and chemical properties.
基本信息
编号系统
物化性质
安全信息
生产方法及用途
生产方法
茉莉酮是茉莉油、黄水仙油、橙花油等精油的成分。工业合成可有多种方法,如用3-已烯醇为原料。如以甲基乙烯基酮为原料,与溴化氢加成得至2-溴乙基甲酮制成环状缩酮,在二羟基酸溶液中用乙炔的金属化合物缩合,生成乙炔缩酮。再与顺式2-戊烯-1-醇的对甲苯磺酸盐反应,将生成物用过氯酸处理成顺式8-(+)-烯-5-炔-2-酮,再经加氢制成2,4-二酮。将2,4-二酮在稀碱水溶液中进行分子内缩合而得到顺式茉莉酮。另一种制法是将γ-酮醛环化,然后再引入甲基而制得茉莉酮。
用途
顺茉莉酮是很有价值的香料之
一,香气很似茉莉花香,是茉莉油的重要香成份之
一,用于高级茉莉系列化状品香精中。茉莉酮加氢还原可得二氢茉莉酮。二氢茉莉酮为略微有色的透明液体,沸点230℃,102℃(0.67kPa),具有很浓厚的花香,化学性质比较稳定,可以广泛应用于茉莉系列香精中,二氢茉莉酮工业生产简单,有多种方法。在磷酸存在下,温度控制在80℃,压力为0.007-0.011MPa,将十一烯酸环化可制得二氢茉莉酮。
上游原料
1-溴-2-戊炔 ethyl 2-methyl-1-(2-pentyn-1-yl)-3-cyclopenten-5-one-1-carboxylate 2-Ethoxycarbonyl-4-methoxycarbonyl-3-methyl-2-cyclopentenone (Z)-1-(2-methyl-1,3-dioxolan-2-yl)-4-(phenylsulfonyl)non-6-en-3-one (Z)-十一碳-8-烯-2,5-二酮 2-Ethoxycarbonyl-4-methoxycarbonyl-3-methyl-2-(2-pentynyl)-3-cyclopentenone 1,3-环戊二酮 Z-1-(2-methyl-1,3-dioxolan-2-yl)non-6-en-3-one 3-Methyl-2-(phenylselenenyl)-2-(2-pentynyl)cyclopentanone 2-acetyl-(Z)-hept-4-enoic acid methyl ester 3-(2-methylpropoxy)cyclopent-2-en-1-one cis-3-hexen-1-yl phenyl sulfone 4-methyl-5-(2Z-pentenyl)-2-cyclopentenone 3-bromo-2-[(Z)-2-pentenyl]-2-cyclopenten-1-one 2-phenylselanylcyclopent-2-en-1-one 顺-2-戊烯醇 3-isobutoxy-5-methyl-2-cyclopentenone 3-isobutoxy-4-(2-pentynyl)-2-cyclopentenone 3-bromo-2-iodocyclopent-2-enol 2-iodocyclopentane-1,3-dione 2-(cis-2-Pentenyl)-3-<(phenylsulfonyl)methyl>-2-cyclopenten-1-one hex-3-en-1-ol,4-methylbenzenesulfonic acid 5-(Pent-2-ynyl)-4-methylcyclopent-2-en-1-one 2-hydroxy 5-oxo-8-undecyne methanesulfonic acid pent-2-enyl ester (Z)-6-(Phenylsulfonyl)-2-hydroxyundec-8-en-5-one undec-8-yne-2,5-dione 3-isobutoxy-5-methyl-4-(2-pentynyl)-2-cyclopentenone 1-iodopent-2-yne methyl (Z)-2-[4-[(diethoxyphosphoryl)oxy]-1-oxo-4-pentenyl]-4-heptenoate 2-(2-cis-pentenyl)-3-methyl-5-(phenylthio)-2-cyclopenten-1-one ethyl 2-carbethoxy-hept-4-yn-1-oate (4Z)-4-庚烯酸 (Z)-hept-4-en-1-yne 3-methyl-2-phenylselanylcyclopentan-1-one (Z)-hept-4-enoyl chloride 6-(benzenesulfonyl)undec-8-ene-2,5-dione 3-methyl-2-(2-pentynyl)-2-cyclopentenone 乙酰丙酮 (Z)-1-bromopent-2-ene 3-bromo-2-iodocyclopent-2-enone 3-乙酰基二氢-5-甲基-2(3H)-呋喃酮 5-(Phenylselenenyl)-3-methyl-2-(pent-2-ynyl)cyclopentanone 顺-3-己烯-1-醇 [3-Bromo-2-((Z)-pent-2-enyl)-cyclopent-2-enyloxy]-tert-butyl-dimethyl-silane cis-3-Acetyl-5-octen-2-one 2-acetyl-(2'-pent-β-ynyl)-4-methyl-butyrolactone Z-3-hexen-1-yl iodide
下游产品