香茅醇是最常用的香料之一,适用于玫瑰香型,并可作为柑橘香精和多种香茅醇酯类的原料。它还能用于制造羟基二氢香茅醇并进而制成羟基二氢香茅醛。香茅醇是调配各种玫瑰系花香香精不可或缺的成分,几乎可以应用于所有化妆品中。
对于食用香料,根据日本《食品添加物公定书》的规定,纯度需在94%以上,并且只能用于提香目的。它可用于提取香叶醇或香茅醛,也可作为杀虫剂、驱蚊药和皂用香精;广泛用于香水香精、皂用及化妆品香精等制造中。此外,香茅醇还是玫瑰型香精的基体香气,也常用以增强鲜花香调,如铃兰、紫丁香、桂花等花香类型,并常与其他香叶油、香叶醇和苯乙醇混合使用形成玫瑰基础。
香精香料香茅醇又称香草醇或β-薰衣酮醇,主要来源于玫瑰、柠檬草、天竺葵、尤加利和香蜂草精油中。它是一种无环的单萜类化合物,在单萜醇中最简单的一种。香茅醇用于调配多种香精香水,具有比香叶醇更优雅的玫瑰香气。
此外,香茅醇还被临床证明具备抗炎、抗惊厥、镇痛及降胆固醇等多种药物活性。它是合成多种手性化合物的重要中间体。
含量分析按总醇量测定法(OT-5)测量香茅醇含量,用于皂化时的乙酰化醇量取1.2g。计算中所用当量因子(e)为78.13。
毒性根据文献报道,香茅醇的大鼠急性口服LD50值为3.45 g/kg(范围:3.21-3.69 g/kg)。大白兔的急性皮肤毒性LE50值为2.65 g/kg(范围:1.78-3.52 g/kg),小鼠的经口LD50值为4 g/kg。
使用限量FEMA规定如下:
适度为限(FDA§172.515,2000)。
化学性质香茅醇是一种无色油状液体,具有新鲜玫瑰般的特殊香气,并带有苦味。它分为d-型、dl-型和l-三种天然形式,通常所指的香茅醇指的是d-香茅醇。沸点为225℃,闪点为102℃。
天然香茅醇主要存在于约70种精油中,如香茅油、香叶油等。它易溶于乙醇和氯仿,可部分溶解于水。
生产方法 (1)右旋和消旋香茅醇从爪哇香草油蒸馏得到的右旋香茅醛以兰尼镍催化剂进行氢化反应,转变为右旋香茅醇。同样地,从柠檬桉油中的消旋香茅醛部分得消旋香茅醇。
(2)由精油中的右旋或消旋香叶醇制造从爪哇香茅油中提取的香叶醉经催化氢化反应后进行分馏得到。选择兰尼钴作催化剂,可使2位双键氢化。
(3)合成法将合成的香叶醇和橙花醇混合物部分氢化;或由异丙醇用钡活化的亚格酸铜在180℃加压下反应产生。此方法产率为90%。
(4)由光学活性蒎烯制造左旋香茅醇将α-或β-蒎烯氢化得(-)-顺蒎烷,加热裂解转变成(+)-3,7-二甲基-1,6-辛二烯,与三异丁基铝或二异丁基氢化铝作用。然后将生成的醇铝氧化并水解,可得到纯度为97%的香茅醇。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
8-甲氧基-2,6-二甲基辛-2-烯 | citronellyl methyl ether | 55915-70-3 | C11H22O | 170.295 |
—— | (±)-(Z)-8-hydroxycitronellol | 23062-05-7 | C10H20O2 | 172.268 |
(-)-3,7-二甲基辛-6-烯醇甲酸酯 | citronellyl formate | 93919-91-6 | C11H20O2 | 184.279 |
—— | allyl citronellol | 139694-24-9 | C13H24O | 196.333 |
8-(甲氧基甲氧基)-2,6-二甲基辛-2-烯 | 8-(methoxymethoxy)-2,6-dimethyl-2-octene | 77661-65-5 | C12H24O2 | 200.321 |
3,7-二甲基-6-辛烯酸 | racemic citronellic acid | 502-47-6 | C10H18O2 | 170.252 |
—— | geraniol hydrate | 27415-10-7 | C10H20O2 | 172.268 |
乙酸香茅酯 | citronellyl-acetate | 150-84-5 | C12H22O2 | 198.305 |
—— | (3,7-dimethyloct-6-enyloxy)trimethylsilane | 18419-09-5 | C13H28OSi | 228.45 |
香茅醛 | 3,7-dimethyl-oct-6-enal | 106-23-0 | C10H18O | 154.252 |
(+)-香茅醛 | (R)-Citronellal | 2385-77-5 | C10H18O | 154.252 |
3,7-二甲基-6-辛烯酸甲酯 | methyl 3,7-dimethyloct-6-enoate | 2270-60-2 | C11H20O2 | 184.279 |
8-(1-甲氧乙氧基)-2,6-二甲基-2-辛烯 | 8-(1-Methoxyethoxy)-2,6-dimethyloct-2-ene | 68039-24-7 | C13H26O2 | 214.348 |
8-(1-乙氧基乙氧基)-2,6-二甲基辛-2-烯 | Acetaldehyde ethyl 3,7-dimethyl-6-octenyl acetal | 68928-61-0 | C14H28O2 | 228.375 |
—— | γ-geraniol | 13066-51-8 | C10H18O | 154.252 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(S)-(-)-β-香茅醇 | (S)-3,7-dimethyl-6-octen-1-ol | 7540-51-4 | C10H20O | 156.268 |
(R)-(+)-β-香茅醇 | (3R)-citronellol | 1117-61-9 | C10H20O | 156.268 |
—— | (+/-)-(E)-3,7-dimethyl-6-nonen-1-ol | 441296-70-4 | C11H22O | 170.295 |
8-甲氧基-2,6-二甲基辛-2-烯 | citronellyl methyl ether | 55915-70-3 | C11H22O | 170.295 |
—— | (3RS,7S)-3,7,11-trimethyl-10-dodecen-1-ol | 474255-83-9 | C15H30O | 226.403 |
—— | (3RS,7R)-3,7,11-trimethyl-10-dodecen-1-ol | 474255-89-5 | C15H30O | 226.403 |
—— | 8-hydroperoxy-2,6-dimethyloct-2-ene | —— | C10H20O2 | 172.268 |
—— | (E)-2,6-dimethyloct-2-ene-1,8-diol | 26489-18-9 | C10H20O2 | 172.268 |
—— | (±)-(Z)-8-hydroxycitronellol | 23062-05-7 | C10H20O2 | 172.268 |
4,8-二甲基壬-7-烯-1-醇 | 4,8-dimethylnon-7-en-1-ol | 58772-88-6 | C11H22O | 170.295 |
—— | bis-(3,7-dimethyl-oct-6-enyl)-ether | 55774-43-1 | C20H38O | 294.521 |
—— | 2,6-dimethyl-8-hydroxyoct-2-enal | 26489-19-0 | C10H18O2 | 170.252 |
—— | (2E)-8-hydroxy-2,6-dimethyl-2-octenal | 194092-52-9 | C10H18O2 | 170.252 |
8-丁氧基-2,6-二甲基辛-2-烯 | butyl 3,7-dimethyloct-6-en-1-yl ether | 71077-30-0 | C14H28O | 212.376 |
香茅基乙基醚 | citronellyl ethyl ether | 69929-16-4 | C12H24O | 184.322 |
—— | (-)-(S)-(E)-2,6-dimethyl-8-hydroxyoct-2-enal | 87480-85-1 | C10H18O2 | 170.252 |
2,6-二甲基-2-辛烯 | 2,6-dimethyl-oct-2-ene | 4057-42-5 | C10H20 | 140.269 |
(-)-3,7-二甲基辛-6-烯醇甲酸酯 | citronellyl formate | 93919-91-6 | C11H20O2 | 184.279 |
—— | 8-methoxy-2,6-dimethyl-2(E)-octen-1-ol | 123300-75-4 | C11H22O2 | 186.294 |
—— | allyl citronellol | 139694-24-9 | C13H24O | 196.333 |
(S)-(-)-香茅酸 | (S)-(-)-citronellic acid | 2111-53-7 | C10H18O2 | 170.252 |
(R)-(+)-香茅酸 | (R)-citronellic acid | 18951-85-4 | C10H18O2 | 170.252 |
3,7-二甲基-6-辛烯酸 | racemic citronellic acid | 502-47-6 | C10H18O2 | 170.252 |
8-(甲氧基甲氧基)-2,6-二甲基辛-2-烯 | 8-(methoxymethoxy)-2,6-dimethyl-2-octene | 77661-65-5 | C12H24O2 | 200.321 |
3-[(3,7-二甲基-6-辛烯基)氧基]丙腈 | 3-Citronellyloxy-propionitril | 56505-01-2 | C13H23NO | 209.332 |
—— | (3,7-dimethyl-oct-6-enyloxy)-acetonitrile | 68060-29-7 | C12H21NO | 195.305 |
2,6-二甲基-2-辛烯-1-醇 | 2,6-dimethyl-2-octen-1-ol | 13827-95-7 | C10H20O | 156.268 |
—— | 8-hydroxy-citronellyl ethyl ether | 123300-76-5 | C12H24O2 | 200.321 |
—— | 2,6-dimethyl-2-decene | 214126-59-7 | C12H24 | 168.323 |
—— | 2,6-dimethyl-2-tridecene | 1028192-70-2 | C15H30 | 210.403 |
—— | 2,6,10-trimethyl-2-ene | 78774-68-2 | C15H30 | 210.403 |
2,6-二甲基-2-十二碳烯 | 2,6-dimethyl-2-dodecene | 125182-57-2 | C14H28 | 196.376 |
—— | (6R/S,10R/S)-2,6,10-trimethyl-2-tridecene | 328408-68-0 | C16H32 | 224.43 |
—— | (S)-(-)-2,6-dimethyldodec-2-ene | 86414-52-0 | C14H28 | 196.376 |
—— | (E)-8-ethoxy-2,6-dimethyloct-2-enal | 123301-01-9 | C12H22O2 | 198.305 |
乙酸香茅酯 | citronellyl-acetate | 150-84-5 | C12H22O2 | 198.305 |
—— | (R)-1-citronellyl acetate | 20425-54-1 | C12H22O2 | 198.305 |
乙酸香茅酯 | (S)-(-)-citronellyl acetate | 67601-05-2 | C12H22O2 | 198.305 |
3,7-二甲基辛-6-烯-1-胺 | 3,7-dimethyl-6-octenylamine | 53339-59-6 | C10H21N | 155.283 |
3,7-二甲基-6-辛烯腈 | citronellylnitrile | 51566-62-2 | C10H17N | 151.252 |
—— | (3,7-dimethyloct-6-enyloxy)trimethylsilane | 18419-09-5 | C13H28OSi | 228.45 |
—— | (R)-8-bromo-2,6-dimethyloct-2-ene | 10340-84-8 | C10H19Br | 219.165 |
(S)-(+)-溴化香茅酯 | (S)-citronellyl bromide | 143615-81-0 | C10H19Br | 219.165 |
8-溴-2,6-二甲基-2-辛烯 | citronellylbromide | 4895-14-1 | C10H19Br | 219.165 |
8-氯-2,6-二甲基-2-辛烯 | (+/-)-8-chloro-2,6-dimethyloct-2-ene | 53353-02-9 | C10H19Cl | 174.714 |
(+)-香茅醛 | (R)-Citronellal | 2385-77-5 | C10H18O | 154.252 |
(-)-香茅醛 | (S)-Citronellal | 5949-05-3 | C10H18O | 154.252 |
—— | citronellyl iodide | 55816-07-4 | C10H19I | 266.165 |
香茅醛 | 3,7-dimethyl-oct-6-enal | 106-23-0 | C10H18O | 154.252 |
3,7-二甲基辛-6-烯-1-硫醇 | 3,7-dimethyl-6-octene-1-thiol | 102790-02-3 | C10H20S | 172.335 |
3,7-二甲基辛-6-烯基氨基甲酸酯 | β-citronellyl carbamate | 38911-80-7 | C11H21NO2 | 199.293 |
—— | Dihydronerolidol | 109309-47-9 | C15H30O | 226.403 |
—— | citronellyl chloroformate | 58906-73-3 | C11H19ClO2 | 218.724 |
—— | (E)-2,6-dimethyl-oct-2-enal | 13827-93-5 | C10H18O | 154.252 |
m-甲苯硼酸,2-氨基-(8CI) | (S)-citronellyl propionate | 89460-13-9 | C13H24O2 | 212.332 |
丙酸香茅酯 | 3,7-dimethyl-6-octen-1-ol propanoate | 141-14-0 | C13H24O2 | 212.332 |
3,7-二甲基-6-辛烯酸甲酯 | methyl 3,7-dimethyloct-6-enoate | 2270-60-2 | C11H20O2 | 184.279 |
—— | citronellyl glycidyl ether | 74423-38-4 | C13H24O2 | 212.332 |
—— | (E)-3,7-dimethyloct-3-enol | 56134-54-4 | C10H20O | 156.268 |
丁酸香茅酯 | citronellyl butyrate | 141-16-2 | C14H26O2 | 226.359 |
—— | (R)-3,7-Dimethyloct-6-enyl butyrate | 93919-89-2 | C14H26O2 | 226.359 |
—— | (S)-3,7-Dimethyloct-6-enyl butyrate | 94133-43-4 | C14H26O2 | 226.359 |
—— | 8-acetoxy-2,6-dimethyloct-2E-en-1-ol | 95576-02-6 | C12H22O3 | 214.305 |
磷酸香茅酯 | citronellyl phosphate | 55274-41-4 | C10H21O4P | 236.248 |
3,7-二甲基-1,6-辛二烯 | dihydromyrcene | 2436-90-0 | C10H18 | 138.253 |
—— | 3,7,11-trimethyl-dodeca-1,10-dien-3-ol | 5713-01-9 | C15H28O | 224.387 |
戊酸-3,7-二甲基-6-辛烯基酯 | citronellyl valerate | 7540-53-6 | C15H28O2 | 240.386 |
—— | 3,7-dimethyloct-6-en-1-yl acrylate | 45160-93-8 | C13H22O2 | 210.316 |
—— | (E)-3,7-dimethyl-8-oxooct-6-enyl acetate | 79763-09-0 | C12H20O3 | 212.289 |
异丁酸香茅酯 | citronellyl isobutyrate | 97-89-2 | C14H26O2 | 226.359 |
—— | acetoxy-8 dimethyl-2,6 octene-2 al | 96740-50-0 | C12H20O3 | 212.289 |
3,7-二甲基辛-6-烯基 2-氯乙酸酯 | chloroacetic acid citronellyl ester | 5471-50-1 | C12H21ClO2 | 232.751 |
—— | β-citronellol | 35492-57-0 | C13H24O3 | 228.332 |
—— | 3,7-dimethyloct-6-en-1-yl 2-bromoacetate | 109160-72-7 | C12H21BrO2 | 277.202 |
—— | 3,7,11-trimethyl-10-dodecen-1-ol-1,1-d2 | 848565-96-8 | C15H30O | 228.387 |
己酸-3,7-二甲基-6-辛烯酯 | citronellyl hexanoate | 10580-25-3 | C16H30O2 | 254.413 |
—— | (6S)-6,10-dimethylundec-9-en-2-one | 50718-54-2 | C13H24O | 196.333 |
6,10-二甲基-十二烯-2-酮 | 6,10-dimethyl-9-undecen-2-one | 4433-36-7 | C13H24O | 196.333 |
—— | (R)-6,10-dimethyl-9-undecen-2-one | 114976-95-3 | C13H24O | 196.333 |