CN1852970A - 3-异丙基-1-甲基环戊基衍生物及其在芳香用品中的用途 - Google Patents
3-异丙基-1-甲基环戊基衍生物及其在芳香用品中的用途 Download PDFInfo
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- CN1852970A CN1852970A CNA2004800265702A CN200480026570A CN1852970A CN 1852970 A CN1852970 A CN 1852970A CN A2004800265702 A CNA2004800265702 A CN A2004800265702A CN 200480026570 A CN200480026570 A CN 200480026570A CN 1852970 A CN1852970 A CN 1852970A
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- propyl
- methylcyclopentyl
- compound
- alcohol
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- 125000003118 aryl group Chemical group 0.000 claims description 13
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- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 7
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- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical compound [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 claims description 5
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 claims description 4
- 125000006625 (C3-C8) cycloalkyloxy group Chemical group 0.000 claims description 4
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- 239000012280 lithium aluminium hydride Substances 0.000 description 1
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- KVWWIYGFBYDJQC-UHFFFAOYSA-N methyl dihydrojasmonate Chemical compound CCCCCC1C(CC(=O)OC)CCC1=O KVWWIYGFBYDJQC-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- DYGOPFFOGFHOIB-UHFFFAOYSA-N methylperoxyethane Chemical compound CCOOC DYGOPFFOGFHOIB-UHFFFAOYSA-N 0.000 description 1
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- 239000012279 sodium borohydride Substances 0.000 description 1
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- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/28—Saturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings
- C07C47/30—Saturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings with a five-membered ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/13—Monohydroxylic alcohols containing saturated rings
- C07C31/133—Monohydroxylic alcohols containing saturated rings monocyclic
- C07C31/135—Monohydroxylic alcohols containing saturated rings monocyclic with a five or six-membered rings; Naphthenic alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/30—Compounds having groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/29—Saturated compounds containing keto groups bound to rings
- C07C49/297—Saturated compounds containing keto groups bound to rings to a five-membered ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/29—Saturated compounds containing keto groups bound to rings
- C07C49/313—Saturated compounds containing keto groups bound to rings polycyclic
- C07C49/317—Saturated compounds containing keto groups bound to rings polycyclic both carbon atoms bound to the keto group belonging to rings
-
- C—CHEMISTRY; METALLURGY
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Abstract
本发明涉及式(I)的3-异丙基-1-甲基环戊基衍生物,其中R1、R2和R3在权利要求中有所定义,本发明还涉及它们在芳香用品中的用途。
Description
本发明涉及具有花香、水果香和木香香气的3-异丙基-1-甲基环戊基衍生物,以及它们作为芳香剂的用途。本发明还涉及它们的制备方法及含有它们的芳香组合物。
在芳香剂领域中,总是需求可增强或改进气味味感或者能够赋予新的香气的化合物。
目前发现,某些3-异丙基-1-甲基环戊基衍生物具有广受欢迎的花香、水果香和木香香气,并且它们制备起来相对简单和容易,其制备用的起始原料是容易获得的便宜且天然存在的起始原料。
因此,本发明的-个方面涉及下式I的化合物作为芳香剂的用途:
其中R1是氢;或
R1和R2独立地是C2-8烷基(优选C2-4烷基,例如乙基),C2-8链烯基,C3-8环烷基,取代有至少一个C1-3烷基的C3-8环烷基(例如甲基环戊基),芳基(例如苯基),或取代有至少一个C1-3烷基的芳基(例如甲苯基);
R3是羟基,C1-8烷氧基(例如甲氧基、乙氧基和异丙氧基),C3-8环烷氧基,C2-5烷氧基甲基氧基(例如甲氧基甲基氧基、乙氧基甲基氧基),芳基氧基(例如苯氧基),或其中芳环取代有C1-3烷基的芳基氧基;或者
R2和R3与跟它们相连的碳原子一起形成羰基。
特别优选的式I化合物是(1R,顺)-1-乙氧基甲氧基甲基-3-异丙基-1-甲基环戊烷,1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-酮,1-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-1-酮,1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-酮,1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-醇,1-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-1-醇,1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-2-醇,2-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-2-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-2-醇,2-[(1S,顺)-3-异丙基-1-甲基环戊基]丁-2-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-烯-2-醇,3-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-醇和1-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-2-醇。
式I的化合物中可以含有至少两个手性中心,并且就此它们可以是以立体异构体的混合物的形式存在,或者可以将它们解析成异构体纯的形式。立体异构体的解析会增加制造的复杂性及将这些化合物纯化的过程,所以,出于经济原因,优选简单地以它们立体异构体混合物的形式来使用这些化合物。然而,如果期望制备单一的立体异构体,则可以根据本领域已知的方法来实现,例如制备型HPLC和GC或通过立体有择性合成。
本领域技术人员知道,对映异构体在其物理性能方面是相似的,但是在例如它们的生理学性能和感观性能方面可能是不同的。
因此,另一方面本发明涉及富含下式1a(即(1R,顺)-)或下式1b(即(1S,顺)-)所示的其对映异构体之一的式I化合物的用途:
其中R1、R2和R3具有如上相同的含义。
据发现,式1a的某些化合物的气味阈值平均两倍低于对应的对映异构体。因此,富含其对应的(1R,顺)对映异构体的式I化合物是优选的。
本文中使用术语“富含”是指对映异构体纯度大于1∶1有利于所选对映异构体的化合物。具有约1∶3或更大纯度,例如约1∶4纯度的化合物是优选的。特别优选的是具有1∶9或更大对映异构体纯度的化合物,如5∶95或1∶99。
虽然前述化合物的一些已经在文献中有所描述,但其它化合物没有描述并且是新颖的。因此,本发明另一方面提供下式I的化合物:
其中R1是氢;或
R1和R2独立地是C2-8烷基,C2-8链烯基,C3-8环烷基,取代有至少一个C1-3烷基的C3-8环烷基,芳基,或取代有至少一个C1-3烷基的芳基;或者
R3是羟基,C1-8烷氧基,C3-8环烷氧基,C2-5烷氧基甲基氧基,芳基氧基或其中芳环取代有C1-3烷基的芳基氧基;或者
R2和R3与跟它们相连的碳原子一起形成羰基;前提条件是
如果R2和R3与跟它们相连的碳原子一起形成羰基,则R1不是氢或苯基。
本发明的化合物可以单独使用或与基本物料结合使用。本文中,“基本物料”包括所有已知的香气分子,选自目前可获得的广泛的天然产品和合成分子,例如精油类,醇类,醛类和酮类,醚类和缩醛类,酯类和内酯类,大环和杂环类,和/或与一种或多种常规在芳香组合物中与增香剂结合使用的成分或赋形剂掺混使用,所述成分或赋形剂例如载体物质,及其它本领域常用的辅剂。
下面所列的物质包括可以与本发明化合物结合使用的已知香气分子的实例:
-醚制油和萃取物,例如树苔净油,罗勒油,海狸香油,广木香根油,桃金娘油,橡苔净油,老鹳草油,茉莉净油,广藿香油,玫瑰油,檀香油,苦艾油,熏衣草油或衣兰油;
-醇类,例如香茅醇,EbanolTM,丁子香酚,金合欢醇,香叶醇,Super MuguetTM,芳樟醇,苯乙醇,SandaloreTM,萜品醇或TimberolTM;
-醛类和酮类,例如α-戊基肉桂醛,GeorgywoodTM,羟基香茅醛,Iso E Super,Isoraldeine,Hedione,麦芽酚,甲基柏木基酮,甲基紫罗酮或香草醛;
-醚和缩醛类,例如AmbroxTM,香叶基甲基醚,氧化玫瑰或SpirambreneTM;
-酯类和内酯类,例如乙酸苄酯,乙酸柏木酯,γ-癸内酯,Helvetolide,γ-十一内酯或乙酸岩兰草酯。
-大环化合物类,例如黄葵内酯,巴西酸亚乙酯或Exaltolide。
-杂环化合物类,例如异丁基喹啉。
本发明的化合物可以在广泛的芳香用品中使用,例如在精细香料和功能性香料的任何领域中,例如香水、家用产品、洗衣产品、身体护理用产品和美容品。化合物可以是以宽范围的量使用,取决于具体的应用和其它增香成分的性质和数量。使用比例一般是用品的约0.001至约20wt%。在一个实施方案中,本发明的化合物可以在织物柔软剂中以约0.001-0.05wt%的量使用。在另一个实施方案中,本发明的化合物可以在精细香料中以约0.1-20wt%、更优选约0.1-5wt%的量使用。然而,这些数值仅仅是以实例的方式给出的,因为富有经验的香料调配者使用较低或较高的浓度也可以达到效果或可能产生新的谐香。
本发明的化合物可以用于芳香用品,简单地通过将芳香组合物直接与芳香用品混合,或者,可以将它们在在先的步骤中用截留材料截留,所述的截留材料例如聚合物、胶囊、微胶囊和毫微胶囊、脂质体、成膜剂、吸收剂如碳或沸石、环状低聚糖及其混合物,或者可以将它们与基底化学键合,使得当施加外部刺激如光、酶等时,基底能够释放芳香分子,然后与用品混合。
因此,本发明附加地提供一种生产芳香用品的方法,包括掺加式I的化合物或富含其对映异构体之一的式I化合物作为芳香成分,通过将化合物直接掺混至用品中,或者通过掺混含有式I化合物或富含其对映异构体之一的式I化合物的芳香组合物,然后使用常规的技术和方法将其混合至芳香用品中。
本文中,“芳香用品”是指任何产品,如精细香料,例如香水和化妆水(Eau de Toilette);家用产品,例如洗碗机用的洗涤剂、表面清洁剂;洗衣产品,例如柔软剂、漂白剂、去污剂;身体护理用产品,例如洗发液、浴用凝胶;及美容品,例如除臭剂、雪花膏,包括增香剂。所列的这些产品是以举例说明方式给出的并且不以任何方式限制本发明。
式I化合物的制备可以是例如通过葑酮(1,3,3-三甲基-2-降冰片烷酮)的Haller-Bauer重排,然后在碱性条件下例如在如NaOH或KOH的碱的存在下水解成3-异丙基-1-甲基环戊烷羧酸。然后,将所得酸与相应的烷基锂产品反应,得到其中R2和R3与跟它们相连的碳原子一起形成羰基的式I化合物。为得到本发明的其它化合物,可以通过用例如NaBH4还原,或者通过添加Grignard试剂,将所得的酮转化成仲醇或叔醇。为进一步获得本发明的其它化合物,可以借助Williamson反应在本领域已知的条件下,将所得的醇进一步转化成相应的醚。
光学纯的式I化合物和富含对映异构体之一的式I化合物(即式1a或1b的化合物)的对映异构体混合物可以由光学纯的葑酮或由富含(1R)-(-)-葑酮或(1S)-(+)-葑酮的对映异构体混合物作为起始原料来合成。
下面将参考以下非限定性实施例来描述本发明。
以下实施例1-8中所述的所有终产品均为无色油。它们由(1R)-(-)-和(1S)-(+)-葑酮为起始来获得,其中所述的(1R)-(-)-和(1S)-(+)-葑酮分别含有8%和2%的另一种对映异构体。所汇报的NMR数据在以下的一般条件下测定:1H于400下和13C于100MHz下;在CDCl3中;化学位移(δ)以TMS的低磁场ppm计;偶合常数J以Hz计。
实施例1:(1R,顺)-1-乙氧基甲氧基甲基-3-异丙基-1-甲基环戊烷
a)[(1R,顺)-3-异丙基-1-甲基环戊基]甲醇
将(1R,顺)-3-异丙基-1-甲基环戊烷羧酸(70.0g,0.41mol,其由(1R)-(-)-葑酮获得(V.Braun,J.;Jacob,A.Chem.Ber.1933,66,1461))于二乙醚(100ml)中的溶液在氮气条件下缓慢添加至氢化铝锂(13.3g,0.35mol)于相同溶剂(500ml)中的悬浮液中。加热回流3h之后,将反应混合物冷却至10℃,仔细添加2N NaOH溶液(70ml)并且继续搅拌0.5h。滤掉白色固体,将滤液用盐水洗涤(2×500ml),干燥(MgSO4)并且真空浓缩。使用10cm Vigreux柱(0.9-1.1毫巴,96-98℃),将粗产物(79.0g)蒸馏纯化,得到[(1R,顺)-3-异丙基-1-甲基环戊基]甲醇(57.0g,90%产率)。
b)(1R,顺)-1-乙氧基甲氧基甲基-3-异丙基-1-甲基环戊烷
将实施例1的[(1R,顺)-3-异丙基-1-甲基环戊基]甲醇(3.9g,19mmol)于THF(20ml)中的溶液添加至氢化钠(0.77g,32mmol)于相同溶剂(120ml)中的悬浮液中。回流搅拌过夜之后,添加氯甲基乙基醚(3.8ml,38.5mmol)并且继续回流搅拌2h。将经冷却的反应混合物用2N HCl(100ml)处理并且用MTBE萃取(2×100ml)。将有机滤液用盐水洗涤(2×50ml),干燥(MgSO4)并且真空浓缩。将粗产物[(1R,顺)-1-乙氧基甲氧基甲基-3-异丙基-1-甲基环戊烷(4.0g)通过球对球蒸馏纯化(3.25g,79%产率)。
1H-NMR:δ0.86(d,J=6.7,3H),0.88(d,J=6.7,3H),1.02(s,3H),1.12(dd,J=12.3,11.0,1H),1.16-1.38(m,3H),1.22(t,J=7.0,3H),1.50(dd,J=12.5,6.6,1H),1.56-1.71(m,2H),1.75-1.86(m,1H),3.28(q,J=8.8,1H),3.58(d,JAB=7.1,1H),3.62(d,JAB=7.1,1H),4.68(s,3H).13C NMR:δ15.0(q),21.4(2q),25.5(q),30.2(t),33.7(d),36.2(t),41.9(t),42.5(s),46.7(d),62.8(t),77.1(t),95.2(t).[α]D 22-10.5(c 1.0,EtOH).
气味描述:水果香,青香,花香,橙皮香。
实施例2:1-[1R,顺)-3-异丙基-1-甲基环戊基]丙-1-酮10℃下,用6h的时间,将乙基锂于二乙醚(150ml,75mmol)中的0.5M溶液滴加至(1R,顺)-3-异丙基-1-甲基环戊烷羧酸(4.0g,24mmol)于相同溶剂(40ml)中的溶液中。将反应混合物倾倒在冰冷却的NH4Cl水溶液(200ml)上并且用MTBE萃取(2×150ml)。将合并的有机相用2NNaOH溶液(100ml)和盐水(2×100ml)洗涤,干燥(MgSO4)并且真空浓缩。将粗产物(3.1g)通过闪蒸色谱(硅胶,正己烷/MTBE 16∶1)纯化,得到1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-酮(1.15g,27%产率)。
1H-NMR:δ0.88(2d,J=6.6,6H),1.05(t,J=7.3,3H),1.20(s,3H),1.23(dq,J=12.5,9.2,1H),1.33-1.43(m,2H),1.56-1.76(m,3H),1.80-1.89(m,1H),2.08(ddd,J=13.1,9.1,4.1,1H),2.50(q,J=7.3,2H).13C-NMR:δ8.5(q),21.5(2q),25.2(q),30.3(t),30.4(t),33.5(d),35.8(t),41.3(t),46.6(d),55.2(s),215.8(s).[α]D 22-3.5(c 1.1,EtOH).
气味描述:青香,土香/苔香,水果香,花香。
实施例3:
以下化合物按照实施例2所述的一般过程来制备。
A)1-[1S,顺)-3-异丙基-1-甲基环戊基]丙-1-酮
[α]D 22+4.0(c 0.9,EtOH)。
气味描述:土香/苔香,水果香,青香。
B)1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-酮
1H-NMR:δ0.88(2d,J=6.5,6H),0.91(t,J=7.3,3H),1.19(s,3H),1.23(dq,J=12.4,9.1,1H),1.26-1.43(m,4H),1.52-1.76(m,5H),1.80-1.88(m,1H),2.08(ddd,J=13.1,9.2,4.0,1H),2.46(t,J=7.1,2H).13C-NMR:δ13.9(q),21.5(2q),22.5(t),25.1(q),26.4(t),30.3(t),33.5(d),35.7(t),37.1(t),41.1(t),46.7(d),55.3(s),215.2(s).[α]D 22-4.5(c1.0.EtOH).
气味描述:青香,花香。
实施例4:1-[1R,顺)-3-异丙基-1-甲基环戊基]丙-1-醇
将1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-酮(0.8g,4.4mmol)于乙醇(5ml)中的溶液添加至硼氢化钠(0.4g,10mmol)于相同溶剂(17ml)中的冷(冰浴)溶液中。室温下搅拌4.5h之后,将反应混合物倾倒在冰冷却的2M HCl(50ml)上并且用MTBE萃取(2×100ml)。将合并的有机相用盐水洗涤(2×100ml),干燥(MgSO4)并且真空浓缩。将粗产物(1.1g)通过闪蒸色谱(硅胶,正己烷/MTBE 10∶1)纯化,得到1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-醇(0.53g,66%产率,非对映异构体比~1∶1)。
1H-NMRδ:0.86(d,J=6.6,3H),0.87(d,J=6.6,3H),0.88(2d,J=6.6,6H),0.91(s,3H),0.92(s,3H),1.00(t,J=7.4,3H),1.01(t,J=7.3,3H),1.04(t,J=11.5,1H),1.13(t,J=11.5,1H),1.16-1.74(m,17H),1.41(dd,J=12.1,6.6,1H),1.77-1.88(m,2H),3.16(dd,J=10.3,1.8,1H),3.18(dd,J=10.3,1.8,1H).13C-NMR:δ11.4(2q),21.4(5q),21.6(1q),25.2(t),25.3(t),29.7(t),29.9(t),33.7(2),36.0(t),36.4(t),42.2(t),42.4(t),46.1(d),46.2(d),46.9(s),47.0(s),81.8(d),82.2(d).[α]D 22-7.5(c 1.0,EtOH).
气味描述:茴香,花香,青香,海产香。
实施例5:
以下化合物按照实施例4所述的一般过程来制备。
A)1-[1S,顺)-3-异丙基-1-甲基环戊基]丙-1-醇
[α]D 22+11.0(c 1.1,EtOH)。
气味描述:水果香,青香,皮革香,花香。
B)1-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-1-醇
非对映异构体比~1∶1。
1H-NMR:δ0.87(d,J=6.6,3H),0.875(d,J=6.6,3H),0.88(2d,J=6.6,6H),0.91(s,3H),0.92(s,3H),0.935(t,J=7.2,3H),0.94(t,J=7.2,3H),1.03(t,J=11.6,1H),1.12(t,J=11.6,1H),1.16-1.75(m,22H),1.77-1.88(m,2H),3.27(m,2H).13C-NMR:δ14.0(2q),20.0(2t),21.4(5q),21.6(q),29.7(t),29.9(t),33.7(2d),34.6(t),34.7(t),36.0(t),36.4(t),42.2(t),42.4(t),46.2(d),46.3(d),46.8(s),46.9(s),79.8(d),80.1(d).[α]D 22-6.5(c 1.0,EtOH).
气味描述:青香,辛香,水果香。
C)1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-醇
非对映异构体比~1∶1。
1H-NMR:δ0.87(d,J=6.6,3H),0.875(d,J=6.6,3H),0.88(2d,J=6.6,6H),0.91(t,J=7.2,3H),0.91(s,3H),0.915(t,J=7.2,3H),0.92(s,3H),1.02(t,J=11.6,1H),1.12(t,J=11.6,1H),1.16-1.75(m,26H),1.77-1.87(m,2H),3.25(dd,J=9.6,1.8,1H),3.26(dd,J=9.6,1.8,1H).13C-NMR:δ14.1(2q),21.5(4q),21.6(q),21.7(q),22.8(2t),29.2(t),29.3(t),29.8(t),30.0(t),32.3(t),32.4(t),33.8(d),33.9(d),36.1(t),36.5(t),42.3(t),42.6(t),46.3(d),46.4(d),47.0(s),47.1(s),80.2(d),80.5(d).[α]D 22-9.0(c 1,0,EtOH).
气味描述:青香,水果香。
实施例6:2-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-2-醇
a)1-[(1R,顺)-3-异丙基-1-甲基环戊基]乙酮
0℃下,用25分钟的时间,将甲基锂于二乙醚(200ml,0.32mol)中的1.6M溶液滴加至(1R,顺)-3-异丙基-1-甲基环戊烷羧酸(25.5g,0.15mol)于THF(250ml)中的溶液中。在0℃下搅拌3h之后,边冷却边加入氯三甲基硅烷(151ml,1.2mol)并且允许反应混合物温热至室温,倾倒在冰冷却的水中(200ml),搅拌0.5h并且用MTBE萃取(2×250ml)。将合并的有机相用水(200ml)、2M NaOH(150ml)和盐水(3×200ml)洗涤,干燥(MgSO4)并且真空浓缩,得到粗产物1-[(1R,顺)-3-异丙基-1-甲基环戊基]乙酮(27.6g),将其的样品(1.5g)通过球对球蒸馏来纯化(0.93g,68%产率)。
b)2-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-2-醇
0℃下,于氮气条件下,将1-[(1R,顺)-3-异丙基-1-甲基环戊基]乙酮(3.0g,18mmol)于二乙醚(10ml)中的溶液添加至甲基溴化镁于二乙醚(7.5ml,22.5mmol)中的3M溶液(其用相同溶剂(20ml)稀释)中。将反应混合物在室温下搅拌1.5h,倾倒在冰冷却的NH4Cl溶液上(100ml)并且用MTBE萃取(2×100ml)。将合并的有机层用盐水洗涤(2×50ml),干燥(MgSO4)并且真空浓缩。将粗产物(2.92g)通过球对球蒸馏来纯化(2.88g,88%产率)。
1H-NMR:δ0.88(d,J=6.7,3H),0.89(d,J=6.7,3H),0.99(s,3H),1.12-1.24(m,2H),1.19(2s,6H),1.31(s,1H),1.32-1.41(m,3H),1.64(m,1H),1.79-1.90(m,2H).13C-NMR:δ21.45(q),21.5(q),24.8(q),25.7(q),25.9(q),30.8(t)33.6(d),33.9(t),40.0(t),46.6(d),49.7(s),74.8(s).[α]D 22-12.5(c 0.7,EtOH).
气味描述:土香/苔香,木香,樟脑香,琥珀香,甜味。
实施例7:
以下化合物按照实施例6所述的一般过程来制备。
A)2-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-2-醇
[α]D 22+15.0(c 1.1,EtOH)。
气味描述:橙皮香/柑橘香,水果香,清新香气(圆柚香)。
B)2-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-2-醇
非对映异构体比~1∶1。
1H-NMR:δ0.88(d,J=6.6,3H),0.885(3d,J=6.6,9H),0.93(2t,J=7.3,6H),0.97(2s,6H),1.07-1.56(m,14H),1.09(2s,6H),1.51(t,J=7.6,2H),1.55-1.68(m,2H),1.78-1.94(m,4H).13C-NMR:δ7.8(2q),21.0(q),21.2(q),21.5(4q),24.7(2q),29.2(t),29.3(t),30.6(t),30.7(t),33.6(2d),33.7(t),34.0(t),39.6(t),40.2(t),46.2(d),46.4(d),50.4(s),50.5(s),76.2(s),76.3(s).[α]D 22-15.0(c 1.0,EtOH).
气味描述:樟脑香,土香/苔香,木香,微微的广藿香。
C)2-[(1S,顺)-3-异丙基-1-甲基环戊基]丁-2-醇
[α]D 22+17.5(c 1.0,EtOH)。
气味:水果香,花香,青香(菠萝香)。
D)2-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-烯-2-醇
非对映异构体比~1∶1。
1H-NMR:δ0.87(d,J=6.6,3H),0.88(3d,J=6.6,9H),0.97(2s,6H),1.09-1.22(m,4H),1.23(2s,6H),1.31-1.46(m,8H),1.55-1.67(m,2H),1.71(2m,6H),1.75-1.94(m,4H),5.62-5.67(m,4H).13C-NMR:δ17.7(2q),21.4(q),21.5(3q),23.9(2q),24.8(q),24.9(q),30.8(t),30.9(t),33.5(d),33.6(d),34.0(t),34.1(t),40.0(t),40.1(t),46.4(d),46.5(d),49.3(2s),76.5(s),76.6(s),123.0(d),123.1(d),136.3(d),136.5(d).[α]D 22-13.0(c1.0,EtOH).
气味描述:土香/苔香,木香,蘑菇香。
实施例8:3-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-醇
按照实施例6所述的一般过程,使用4.3摩尔当量的乙基锂来制备。通过闪蒸色谱(正己烷/MTBE 15∶4)纯化。
产率26%。
1H-NMR:δ0.86(2d,J=6.7,6H),0.91(t,J=7.5,6H),1.00(s,3H),1.11-1.23(m,3H),1.30-1.44(m,3H),1.48-1.68(m,5H),1.76-1.96(m,2H).13C-NMR:δ9.1(q),9.2(q),21.6(q),21.7(q),24.9(q),27.7(t)28.1(t),30.8(t),33.8(d),34.8(t),40.8(t),46.1(d),51.0(s),77.5(s).[α]D 22-8.0(c 0.5,EtOH).
气味描述:青香,脂肪香,花香。
Claims (3)
3、权利要求1的化合物作为芳香剂的用途,其中所述的化合物选自:(1R,顺)-1-乙氧基甲氧基甲基-3-异丙基-1-甲基环戊烷,1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-酮,1-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-1-酮,1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-酮,1-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-1-醇,1-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-1-醇,1-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-1-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]丙-2-醇,2-[(1S,顺)-3-异丙基-1-甲基环戊基]丙-2-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-2-醇,2-[(1S,顺)-3-异丙基-1-甲基环戊基]丁-2-醇,2-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-烯-2-醇,3-[(1R,顺)-3-异丙基-1-甲基环戊基]戊-3-醇和1-[(1R,顺)-3-异丙基-1-甲基环戊基]丁-1-醇。
前述权利要求之一所定义的化合物在芳香用品中的用途。
含有前述权利要求1-3任一项所定义的化合物或其混合物的芳香用品。
权利要求5的芳香用品,其中芳香用品是香水、家用产品、洗衣产品、身体护理用产品或美容产品。
一种芳香用品的生产方法,包括掺入权利要求1、2和3中所定义的式I化合物的步骤。
下式I的化合物:
其中R1是氢;或
R1和R2独立地是C2-8烷基,C2-8链烯基,C3-8环烷基,取代有至少一个C1-3烷基的C3-8环烷基,芳基,或取代有至少一个C1-3烷基的芳基;或者
R3是羟基,C1-8烷氧基,C3-8环烷氧基,C2-5烷氧基甲基氧基,芳基氧基或其中芳环取代有C1-3烷基的芳基氧基;或者
R2和R3与跟它们相连的碳原子一起形成羰基;前提条件是
如果R2和R3与跟它们相连的碳原子一起形成羰基,则R1不是氢或苯基。
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