(3E)-4-甲基-3-己烯-2-酮 | 146071-95-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: (3E)-4-甲基-3-己烯-2-酮
• 英文名称: (E)-4-methyl-hex-3-en-2-one
• 英文别名: 4-Methyl-3-hexen-2-one；(E)-4-methylhex-3-en-2-one
• CAS: 146071-95-6
• 化学式: C₇H₁₂O
• 分子量: 112.172
• InChiKey: BGTFWRDJZNCBCV-AATRIKPKSA-N

物化性质

• 保留指数：
  1240

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (三甲基硅基)乙酸甲酯 、 (3E)-4-甲基-3-己烯-2-酮 在 lithium diisopropyl amide 作用下， 生成 Methyl (2Z,4E)-3,5-dimethyl-2,4-heptadienoate 、 Methyl (2E,4E)-3,5-dimethyl-2,4-heptadienoate
  参考文献：
  名称：

  Koseki, Koshi; Takahashi, Yoshio; Shimazaki, Kazuko, Bioscience, Biotechnology and Biochemistry, 1992, vol. 56, # 11, p. 1728 - 1731

  摘要：

  DOI：
• 作为产物：
  描述：

  (E)-methyl 3-methyl-2-pentenoate 在 lithium hydroxide 作用下， 以 四氢呋喃 、 乙醚 、 水 为溶剂， 反应 72.5h， 生成 (3E)-4-甲基-3-己烯-2-酮
  参考文献：
  名称：

  Koseki, Koshi; Takahashi, Yoshio; Shimazaki, Kazuko, Bioscience, Biotechnology and Biochemistry, 1992, vol. 56, # 11, p. 1728 - 1731

  摘要：

  DOI：

文献信息

• CATALYST FOR ASYMMETRIC HYDROGENATION AND METHOD FOR MANUFACTURING OPTICALLY ACTIVE CARBONYL COMPOUND USING THE SAME
  申请人：YAMADA Shinya

  公开号：US20120136176A1

  公开（公告）日：2012-05-31

  The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active peptide compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same.

  本发明提供了一种用于通过选择性不对称加氢α，β-不饱和羰基化合物制备光学活性羰基化合物的催化剂，该催化剂在反应混合物中不溶解，并提供了制备相应光学活性羰基化合物的方法。特别地，该发明提供了一种催化剂，通过选择性不对称加氢柠檬醛、香叶醛或柠檬醛制备出用作香料或芳香剂的光学活性香茅醛。该发明涉及一种用于不对称加氢α，β-不饱和羰基化合物的催化剂，包括：来自周期表第8至第10族金属中至少一种金属的粉末，或者至少一种金属负载物质，其中至少一种金属负载在一种载体上；一种光学活性肽化合物；和一种酸，还涉及使用该催化剂制备光学活性羰基化合物的方法。
• [EN] COMPOUNDS FOR PROVIDING A LONG-LASTING FLORAL AND FRUITY ODOR<br/>[FR] COMPOSÉS DESTINÉS À FOURNIR UNE ODEUR FLORALE ET FRUITÉE DE LONGUE DURÉE
  申请人：FIRMENICH & CIE

  公开号：WO2021122997A1

  公开（公告）日：2021-06-24

  The present invention relates to the field of perfumery. The present invention relates to compounds of formula (I) that are able to provide a long-lasting or substantive odor, in particular floral and/or fruity odor, to the environment. Moreover, the present invention relates to a method of imparting a long-lasting odor, in particular a fresh green, floral and/or fruity odor, to surfaces, such as hard surfaces, fabric, skin or hair. Furthermore, the present invention relates to the use of said compounds in perfumery, as well as the perfuming compositions or perfumed articles comprising the invention's compounds.

  本发明涉及香精领域。本发明涉及具有式(I)的化合物，能够赋予环境持久或实质性的气味，特别是花香和/或果香气味。此外，本发明涉及一种方法，能够赋予表面持久的气味，特别是清新的绿色、花香和/或果香气味，例如硬表面、织物、皮肤或头发。此外，本发明涉及在香精中使用所述化合物，以及包含本发明化合物的香水配方或香气产品。
• METHODS FOR PRODUCING FUELS, GASOLINE ADDITIVES, AND LUBRICANTS USING AMINE CATALYSTS
  申请人：The Regents of the University of California

  公开号：US20170327448A1

  公开（公告）日：2017-11-16

  Provided herein are methods for producing α,β-unsaturated ketones from the condensation of methyl ketones in the presence of an amine catalyst. Such amine catalysts may be supported, for example, on a silica-alumina support. Such amine catalysts may be used in the presence of an additional acid. The α,β-unsaturated ketones may be produced by dimerization and/or timerization of the methyl ketones. Such α,β-unsaturated ketones may be suitable for use in producing fuels, gasoline additives, and/or lubricants, or precursors thereof. The methyl ketones may be obtained from renewable sources, such as by the fermentation of biomass.

  本文提供了一种制备α，β-不饱和酮的方法，该方法是通过在胺催化剂存在下对甲基酮进行缩合反应实现的。这样的胺催化剂可以被负载在二氧化硅-氧化铝载体上。这样的胺催化剂可以在存在额外酸的情况下使用。α，β-不饱和酮可以通过甲基酮的二聚化和/或三聚化产生。这样的α，β-不饱和酮可适用于生产燃料、汽油添加剂和/或润滑剂，或其前体。甲基酮可以从可再生来源获得，例如通过生物质发酵。
• Method for producing cyclopentadienes
  申请人：NIPPON PETROCHEMICALS CO., LTD.

  公开号：EP0705812A1

  公开（公告）日：1996-04-10

  A method for producing cyclopentadienes which comprises the step of cyclodehydration of an unsaturated carbonyl compound having a specific chemical structures in a vapor phase in the presence of a specific solid acid catalyst. The cyclopentadienes of the invention can be produced in a high yield from inexpensive starting materials through a simplified reaction process and are useful as intermediate compounds for organic synthesis.

  一种生产环戊二烯的方法，包括在特定固体酸催化剂存在下，在气相中对具有特定化学结构的不饱和羰基化合物进行环脱水反应的步骤。本发明的环戊二烯可以用廉价的起始原料，通过简化的反应过程，以较高的产率生产出来，可用作有机合成的中间化合物。
• HOMOGENEOUS ASYMMETRIC HYDROGENATION CATALYST
  申请人：Takasago International Corporation

  公开号：EP2543437A2

  公开（公告）日：2013-01-09

  The present invention provides a catalyst for producing optically active aldehyde or optically active ketone, as an optically active carbonyl compound, by selectively asymmetrically hydrogenating an α, β-unsaturated carbonyl compound, and in particular, a catalyst insoluble in a reaction mixture for obtaining optically active citronellal useful as a flavoring by selectively asymmetrically hydrogenating citral, geranial or neral, and a method for producing the corresponding optically active carbonyl compound. In particular, the present invention provides a method for producing citronellol of identical optical isomers regardless of a mixing ratio of neral and geranial in the asymmetric hydrogenation of citral. In the present invention, the α, β-unsaturated carbonyl compound is asymmetrically hydrogenated using a catalyst including a complex of at least one transition metal selected from transition metals belonging to Group 8 to Group 10 of the Periodic Table, and an optically active cyclic nitrogen-containing compound, and an acid if necessary.

  本发明提供了一种通过选择性不对称氢化α，β-不饱和羰基化合物来生产光学活性醛或光学活性酮，作为光学活性羰基化合物的催化剂，特别是提供了一种不溶于反应混合物的催化剂，用于通过选择性不对称氢化柠檬醛、香叶醇或香叶酯来获得用作香料的光学活性香茅醛，以及生产相应光学活性羰基化合物的方法。特别是，本发明提供了一种在柠檬醛的不对称氢化过程中，无论香叶醇和香叶酯的混合比例如何，都能生产出相同光学异构体的香茅醇的方法。在本发明中，α，β-不饱和羰基化合物使用一种催化剂进行不对称氢化，该催化剂包括至少一种选自属于元素周期表第 8 族至第 10 族的过渡金属的络合物和一种光学活性环状含氮化合物，必要时还包括一种酸。