摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone

中文名称
——
中文别名
——
英文名称
5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone
英文别名
3-methyl-5-(2-methylpropyl)oxolan-2-one
5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone化学式
CAS
——
化学式
C9H16O2
mdl
——
分子量
156.22
InChiKey
SYDVLDZWCVEHRQ-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.5
  • 重原子数:
    11
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.89
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为产物:
    描述:
    硼氢化钠sodium hydroxide(+/-)-2,6-dimethyl-4-oxo-heptanoic acid甲醇乙醚 、 Brine 、 Sodium sulfate-IIIethyl acetate n-hexane5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone 作用下, 以 甲醇 为溶剂, 反应 16.0h, 以to afford 4-isobutyl-2-methyl-4-butanolide (trans:cis=68:32 on NMR basis) of formula (1) in 76% yield as a colourless oil with coconut flavour的产率得到5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone
    参考文献:
    名称:
    Heptanonic acid and furanone compounds and compositions
    摘要:
    从万寿菊属植物油中分离出的一种天然廉价无环单萜酮(二氢万寿菊酮)(式(4)),经过与间高碘酸钾/高锰酸钾的反应平稳氧化为式(3)的2,6-二甲基-4-氧代庚酸,将3还原为4-羟基酸(式(2)),使用金属氢化物例如硼氢化钠或铝锂氢化物,产生的4-羟基酸(式(2))在不分离的情况下,在酸性介质中发生内酯化反应,生成两个手性中心的5-异丁基-3-甲基-4,5-二氢-2(3H)-呋喃酮(式(1)),作为威士忌内酯5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮(式(1a))的类似物,负责高质量的酒类(威士忌,葡萄酒,白兰地和苏格兰威士忌)的风味,此外,椰子味的5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮(式(1))也作为椰子醛的类似物(&ggr;-壬内酯,F.E.M.A. No. 2751)(式(1b)),负责调味各种食品,包括烘焙食品和糖果。
    公开号:
    US06833475B2
  • 作为试剂:
    描述:
    硼氢化钠sodium hydroxide(+/-)-2,6-dimethyl-4-oxo-heptanoic acid甲醇乙醚 、 Brine 、 Sodium sulfate-IIIethyl acetate n-hexane5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone 作用下, 以 甲醇 为溶剂, 反应 16.0h, 以to afford 4-isobutyl-2-methyl-4-butanolide (trans:cis=68:32 on NMR basis) of formula (1) in 76% yield as a colourless oil with coconut flavour的产率得到5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone
    参考文献:
    名称:
    Heptanonic acid and furanone compounds and compositions
    摘要:
    从Tagetes sp.的油中分离出的一种天然廉价的无环单萜酮(二氢龙蒿酮)(式(4)),经过与甲苯磺酸亚铁/高锰酸钾的平滑氧化反应,形成了式(3)的2,6-二甲基-4-氧代庚酸。将3与金属氢化物(如硼氢化钠或铝锂氢化物)还原,得到式(2)的4-羟基酸,它在酸性介质中经过内酯化反应,生成两个手性中心的5-异丁基-3-甲基-4,5-二氢-2(3H)-呋喃酮(式(1))作为威士忌内酯5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮(式(1a))的类似物,负责酒类饮料(威士忌、葡萄酒、白兰地和苏格兰威士忌)的高品质。此外,椰子风味的5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮(式(1))也是椰子醛(&ggr;-壬内酯,F.E.M.A. No. 2751)(式(1b))的类似物,负责为包括烘焙食品和糖果在内的各种食品提供风味。
    公开号:
    US20030212281A1
点击查看最新优质反应信息

文献信息

  • Novel method for converting dihydrotagetone, a bifuctional acyclic monoterpene ketone, isolated from the plant species of tagetes, into a coconut flavoured two chiral centered compound 5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone as a novel analogue of natural whisky lactone and coconut aldehyde
    申请人:——
    公开号:US20020137949A1
    公开(公告)日:2002-09-26
    A natural inexpensive acyclic monoterpene ketone (dihydrotagetone) of formula (4), isolated from the oil of Tagetes sp., was smoothly oxidized with metaperiodate/potassium permanganate into 2,6-dimethyl-4-oxo-heptanoic acid of formula (3), the reduction of 3 with metal hydride such as sodium borohydride or lithium aluminium hydride provided 4-hydroxyacid of formula (2) which on without isolation undergone lactonisation in acidic medium furnished two chiral centered 5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone of formula (1) as an analogue of whisky lactone 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1a) responsible for high quality of alcoholic beverage (whisky, wine, brandy and scotch), in addition, coconut flavoured 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1) is also as an analogue of coconut aldehyde (&ggr;-nonalactone, F.E.M.A. No. 2751) of formula (1b) which is responsible for flavouring a wide range of food stuffs including baked goods and confectionery.
    从Tagetes sp.的油中分离出的一种天然廉价无环单萜酮(二氢紫菀酮)的化学式(4),经过与高碘酸钾/高锰酸钾的平稳氧化反应,得到了化学式(3)的2,6-二甲基-4-氧代庚酸。将3还原为金属氢化物(如硼氢化钠或铝锂氢化物)可以得到化学式(2)的4-羟基酸。在酸性介质中,化学式(2)的内酯化反应未经分离,生成了两个手性中心的5-异丁基-3-甲基-4,5-二氢-2(3H)-呋喃酮,化学式为(1),作为威士忌呋喃酮5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮的类似物,后者是高质量酒类(威士忌,葡萄酒,白兰地和苏格兰威士忌)的重要成分之一。此外,化学式(1)的椰子风味的5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮也是椰子醛(&ggr;-壬内酯,F.E.M.A.编号2751)的类似物,后者是调味各种食品,包括糕点和糖果的重要成分之一。
  • Method for producing chiral dihydrotagetone, and its conversion to chiral 5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone
    申请人:Council of Scientific & Industrial Research
    公开号:US06579992B2
    公开(公告)日:2003-06-17
    A natural inexpensive acyclic monoterpene ketone (dihydrotagetone) of formula (4), isolated from the oil of Tagetes sp., was smoothly oxidized with meta-periodate/potassium permanganate into 2,6-dimethyl-4-oxo-heptanoic acid of formula (3), the reduction of 3 with metal hydride such as sodium borohydride or lithium aluminium hydride provided 4-hydroxyacid of formula (2) which on without isolation undergone lactonization in acidic medium furnished two chiral centered 5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone of formula (1) as an analogue of whisky lactone 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1a) responsible for high quality of alcoholic beverage (whisky, wine, brandy and scotch), in addition, coconut flavored 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1) is also as an analogue of coconut aldehyde (&ggr;-nonalactone, F.E.M.A. No. 2751) of formula (1b) which is responsible for flavoring a wide range of food stuffs including baked goods and confectionery.
    从万寿菊的油中分离出的一种天然廉价的无环单萜酮(二氢万寿菊酮),化学式为(4),经过meta-高碘酸钾/高锰酸钾的平滑氧化,得到化学式为(3)的2,6-二甲基-4-氧代庚酸,将3还原为金属氢化物(如硼氢化钠或铝锂氢化物)提供化学式为(2)的4-羟基酸,它在酸性介质中未经分离即发生内酯化反应,形成两个手性中心的5-异丁基-3-甲基-4,5-二氢-2(3H)-呋喃酮,化学式为(1),它是威士忌呋喃酮5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮的类似物,后者是酒类(威士忌、葡萄酒、白兰地和苏格兰威士忌)高质量的责任。此外,椰子味的5-丁基-4-甲基-4,5-二氢-2(3H)-呋喃酮,化学式为(1),也是椰子醛(&ggr;-壬内酯,F.E.M.A. No. 2751)的类似物,后者是调味各种食品,包括糕点和糖果的责任。
  • US6579992B2
    申请人:——
    公开号:US6579992B2
    公开(公告)日:2003-06-17
  • US6833475B2
    申请人:——
    公开号:US6833475B2
    公开(公告)日:2004-12-21
  • [EN] A METHOD FOR CONVERTING DIHYDROTAGETONE, A BIFUNCTIONAL ACYCLIC MONOTERPENE KETONE INTO 5-ISOBUTYL-3-METHYL-4,5-DIHYDRO-2(3H)-FURANONE AS A ANALOGUE OF NATURAL WHISKY LACTONE AND COCONUT ALDEHYDE<br/>[FR] PROCEDE POUR CONVERTIR DE LA DIHYDROTAGETONE, UNE CETONE DE MONOTERPENE ACYCLIQUE BIFONCTIONNELLE EN 5-ISOBUTYL-3-METHYL-4,5-DIHYDRO-2(3H)-FURANONE EN TANT QU'ANALOGUE DE LACTONE DE WHISKY NATURELLE ET D'ALDEHYDE DE NOIX DE COCO
    申请人:COUNCIL SCIENT IND RES
    公开号:WO2002079180A1
    公开(公告)日:2002-10-10
    A natural inexpensive acyclic monoterpene ketone (dihydrotagetone) of formula (4), isolated from the oil of Tagetes sp., was smoothly oxidized with meta-periodate/potassium permanganate into 2,6-dimethyl-4-oxo-heptanoic acid of formula (3), the reduction of 3 with metal hydride such as sodium borohydride or lithium aluminium hydride provided 4-hydroxyacid of formula (2) which on without isolation undergone lactonisation in acidic medium furnished two chiral centered 5-isobutyl-3-methyl-4,5-dihydro-2(3H)-furanone of formula (1) as an analogue of whisky lactone 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1a) responsible for high quality of alcoholic beverage (whisky, wine, brandy and scotch), in addition, coconut flavoured 5-butyl-4-methyl-4,5-dihydro-2(3H)-furanone of formula (1) is also as an analogue of coconut aldehyde (g-nonalactone, F.E.M.A. No. 2751) of formula (1b) which is responsible for flavouring a wide range of food stuffs including baked goods and confectionery.
查看更多