二氢-5-甲基-5-戊基呋喃-2(3H)-酮 | 52908-82-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 中文名称: 二氢-5-甲基-5-戊基呋喃-2(3H)-酮
• 英文名称: 5-methyl-5-pentyldihydrofuran-2(3H)-one
• 英文别名: Dihydro-5-methyl-5-pentylfuran-2(3H)-one；5-methyl-5-pentyloxolan-2-one
• CAS: 52908-82-4
• 化学式: C₁₀H₁₈O₂
• 分子量: 170.252
• InChiKey: QVWSNRKWLGEXCT-UHFFFAOYSA-N

物化性质

• 保留指数：
  1354

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  二氢-5-甲基-5-戊基呋喃-2(3H)-酮 生成 4-甲基壬酸
  参考文献：
  名称：

  Canceill,J. et al., Bulletin de la Societe Chimique de France, 1975, p. 2066 - 2072

  摘要：

  DOI：
• 作为产物：
  描述：

  4-甲基壬酸 在 N-羟基邻苯二甲酰亚胺 、 di-iodine pentaoxide 、 硝基甲烷 作用下， 以 水 为溶剂， 反应 12.0h， 以59%的产率得到二氢-5-甲基-5-戊基呋喃-2(3H)-酮
  参考文献：
  名称：

  使用碘氧化剂在三级碳中心进行C–H氧化†

  摘要：

  在N-羟基邻苯二甲酰亚胺（NHPI）存在的情况下，使用碘酸（HIO 3）作为氧化剂的氧化系统允许叔C–H键的选择性羟基化和含叔碳中心的羧酸的内酯化。这些反应操作简单，可使用市售试剂在无金属条件下进行，因此为在叔碳中心高效氧化C–H键提供了理想的工具。

  DOI：

  10.1039/c8cc03735c

文献信息

• Electroreductive hydrocoupling of activated olefins with ketones or aldehydes in the presence of trimethylchlorosilane
  作者：Tatsuya Shono、Hiroshi Ohmizu、Souta Kawakami、Hiroshi Sugiyama

  DOI：10.1016/s0040-4039(00)71124-5

  日期：1980.1

  Electroreductive crossed hydrocoupling of α,β-unsaturated esters with aldehydes or ketones in the presence of trimethylchlorosilane afforded γ-lactones in good yields. Similarly, α,β-unsaturated nitriles gave γ-hydroxynitriles in high yields.

  在三甲基氯硅烷的存在下，α，β-不饱和酯与醛或酮的电还原交叉加氢偶联以良好的收率得到了γ-内酯。类似地，α，β-不饱和腈以高收率得到γ-羟基腈。
• HAIR TREATMENT COMPOSITION AND HAIR COSMETIC FOR DAMAGED HAIR
  申请人：Meiji Seika Kaisha, Ltd.

  公开号：EP1602354A1

  公开（公告）日：2005-12-07

  The present invention intends to provide a composition for hair treatment containing γ-polyglutamic acid or a salt thereof, a hair cosmetic for damaged hair containing such a composition, and their uses. The composition for hair treatment containing γ-polyglutamic acid or a salt thereof and the hair cosmetic for damaged hair of the present invention have excellent improvement effects on the strength and frictional force of hair, so that they can provide tension, elasticity, or the like to damage hair to prevent or alleviate split hair and broken hair as well as improvements in combing and touch. Furthermore, they also exert effects of moisture retention inherent to γ-polyglutamic acid or a salt thereof, preventing or improving effects on the generation of dandruff on the basis of such effects, preventing effects on the feeling of stickiness or creak, and various effectiveness including appropriate residual tendency to hair in a simultaneous manner, respectively.

  本发明旨在提供一种含有γ-聚谷氨酸或其盐的头发治疗组合物、一种含有这种组合物的用于受损头发的护发化妆品及其用途。本发明的含有γ-聚谷氨酸或其盐的头发治疗组合物和用于受损头发的护发化妆品对头发的强度和摩擦力有很好的改善效果，因此它们可以为受损头发提供张力、弹性等，以防止或减轻头发分叉和断裂，并改善梳理和触感。此外，它们还能分别发挥γ-聚谷氨酸或其盐固有的保湿效果、在此基础上防止或改善头皮屑产生的效果、防止粘腻感或吱吱作响的效果，以及包括同时对头发产生适当残留倾向在内的各种功效。
• Cosmetic composition and production thereof
  申请人：Kawasaki Yuji

  公开号：US20060018867A1

  公开（公告）日：2006-01-26

  It has been desired to develop a highly preservative and antibacterial cosmetic composition that can easily be applied to both emulsion and non-emulsion type cosmetics. It has also been desired to develop a method of improving a preservative and/or antibacterial effect(s) of a cosmetic composition comprising polyorganosiloxane-containing epsilon-polylysine and thereby reducing the amount of antibacterial preservative agent to be used. There is provided a cosmetic composition comprising one or a combination of two or more of polyorganosiloxane-containing epsilon-polylysine compounds obtained by reacting epsilon-polylysine with polyorganosiloxane or a physiologically acceptable salt thereof, and polyhydric alcohol.

  人们一直希望开发一种高防腐性和抗菌性的化妆品组合物，这种组合物既可用于乳液型化妆品，也可用于非乳液型化妆品。此外，还希望开发一种方法，以改善含有聚有机硅氧烷的ε-聚赖氨酸的化妆品组合物的防腐和/或抗菌效果，从而减少抗菌防腐剂的用量。本发明提供了一种化妆品组合物，该组合物包含一种或两种以上的含聚有机硅氧烷的ε-聚赖氨酸化合物的组合，这些ε-聚赖氨酸化合物是通过ε-聚赖氨酸与聚有机硅氧烷或其生理上可接受的盐以及多元醇反应而得到的。
• Hair treatment composition and hair cosmetic for damaged hair
  申请人：Hasebe Kouhei

  公开号：US20060165636A1

  公开（公告）日：2006-07-27

  The present invention intends to provide a composition for hair treatment containing γ-polyglutamic acid or a salt thereof, a hair cosmetic for damaged hair containing such a composition, and their uses. The composition for hair treatment containing γ-polyglutamic acid or a salt thereof and the hair cosmetic for damaged hair of the present invention have excellent improvement effects on the strength and frictional force of hair, so that they can provide tension, elasticity, or the like to damage hair to prevent or alleviate split hair and broken hair as well as improvements in combing and touch. Furthermore, they also exert effects of moisture retention inherent to γ-polyglutamic acid or a salt thereof, preventing or improving effects on the generation of dandruff on the basis of such effects, preventing effects on the feeling of stickiness or creak, and various effectiveness including appropriate residual tendency to hair in a simultaneous manner, respectively.

  本发明旨在提供一种含有γ-聚谷氨酸或其盐的头发治疗组合物、一种含有这种组合物的用于受损头发的护发化妆品及其用途。本发明的含有γ-聚谷氨酸或其盐的头发治疗组合物和用于受损头发的护发化妆品对头发的强度和摩擦力有很好的改善效果，因此它们可以为受损头发提供张力、弹性等，以防止或减轻头发分叉和断裂，并改善梳理和触感。此外，它们还能分别发挥γ-聚谷氨酸或其盐固有的保湿效果、在此基础上防止或改善头皮屑产生的效果、防止粘腻感或吱吱作响的效果，以及包括同时对头发产生适当残留倾向在内的各种功效。
• Obata, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1953, vol. 73, p. 1298
  作者：Obata

  DOI：——

  日期：——