4,5-二甲基-2-环己烯-1-酮 | 5715-25-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 4,5-二甲基-2-环己烯-1-酮
• 英文名称: 2-cyclohexen-1-one, 4,5-dimethyl-
• 英文别名: 4,5-dimethylcyclohex-2-en-1-one；4,5-Dimethyl-cyclohex-2-enon；4,5-Dimethylcyclohexen-2-one
• CAS: 5715-25-3
• 化学式: C₈H₁₂O
• 分子量: 124.183
• InChiKey: XADBPCVQACZOEL-UHFFFAOYSA-N

物化性质

• 保留指数：
  1016
• 稳定性/保质期：

  存在于主流烟气中。

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  6-Brom-3,4-dimethyl-cyclohexen 在 chromium(VI) oxide 、 氢氧化钾 、 硫酸 作用下， 以 甲醇 、 溶剂黄146 、 丙酮 为溶剂， 生成 4,5-二甲基-2-环己烯-1-酮
  参考文献：
  名称：

  Reactivities of allyl bromides which are 3-cyclohexenyl compounds

  摘要：

  DOI：

  10.1007/bf00850331

文献信息

• Fused-ring alkane fuel and photocatalytic preparation process thereof
  申请人：TIANJIN UNIVERSITY

  公开号：US20200181040A1

  公开（公告）日：2020-06-11

  A process for preparing a fused-ring alkane fuel, wherein the fused-ring alkane fuel has the following structure: wherein n is 1 or 2; R 1 , R 2 , R 3 , R 4 and R 5 are H or —CH 3 or —CH 2 CH 3 ; the fused-ring alkane fuel has a density of greater than 0.870 g/cm 3 , a freezing point of not higher than −50° C., and a net mass heat value of not less than 42.0 MJ/kg; the process for preparing a fused-ring alkane fuel, wherein the process includes steps of: (1) in a presence of ultraviolet light and a photocatalyst, a Diels-Alder cycloaddition reaction between a substituted or unsubstituted cyclic enone and a substituted or unsubstituted furan molecule occurs to produce a fuel precursor molecule: (2) the fuel precursor molecule obtained in the step (1) is subjected to hydrodeoxygenation to produce the fused-ring alkane fuel.

  制备融合环烷烃燃料的过程，其中融合环烷烃燃料具有以下结构： 其中n为1或2；R1、R2、R3、R4和R5为H或—CH3或—CH2 ； 融合环烷烃燃料的密度大于0.870 g/cm3，冰点不高于−50°C，净质量热值不低于42.0 MJ/kg；制备融合环烷烃燃料的过程，其中该过程包括以下步骤：(1) 在紫外光和光催化剂的存在下，取代或未取代的环烯酮与取代或未取代的呋喃分子之间发生 Diels-Alder 环加成反应，产生燃料前体分子： (2) 在步骤(1)中获得的燃料前体分子经过脱氧反应制备融合环烷烃燃料。
• [EN] METHODS FOR STEREOSELECTIVE REDUCTION<br/>[FR] PROCÉDÉS DE RÉDUCTION STÉRÉOSÉLECTIVE
  申请人：INFINITY PHARMACEUTICALS INC

  公开号：WO2009086451A1

  公开（公告）日：2009-07-09

  The invention is directed to a method to reduce a C-C double bond of an enone of a steroidal compound to produce a mixture of β ketone product and α ketone product, comprising treating a solution or suspension of the steroidal compound in a solvent with hydrogen gas in the presence of a catalyst and a substituted pyridine.

  本发明涉及一种方法，用于还原类固醇化合物的烯酮的C-C双键，以产生β酮产物和α酮产物的混合物，包括在催化剂和取代吡啶的存在下，用氢气处理类固醇化合物在溶剂中的溶液或悬浮液。
• Use Of Defined Cyclohexenones As Agents For The Superadditive Enhancement Of An Olfactory Impression And Fragrance And/Or Flavor Material Composition
  申请人：Symrise AG

  公开号：US20140023770A1

  公开（公告）日：2014-01-23

  A compound of Formula (I) or of a mixture comprising two, three, four, five, six or a plurality of different compounds of Formula (I) for the superadditive enhancement of an olfactory impression. The invention also relates to novel fragrance and/or flavor material compositions which, in addition to a compound of Formula (I) or a mixture thereof, further contains one, two, three or a plurality of further fragrance and/or flavor materials, the fragrance and/or flavor material or the further fragrance and/or flavor materials not being compound of Formula (I).

  本发明涉及一种化合物，其化学式为（I），或由两种、三种、四种、五种、六种或多种不同的化合物混合而成，用于增强嗅觉印象。本发明还涉及一种新型香气和/或风味材料组合物，该组合物除了含有化学式（I）的化合物或其混合物外，还进一步含有一种、两种、三种或多种其他香气和/或风味材料，所述香气和/或风味材料或进一步的香气和/或风味材料不是化学式（I）的化合物。
• INHIBITORS OF SERINE PROTEASES, PARTICULARLY HCV NS3-NS4A PROTEASE
  申请人：VERTEX PHARMACEUTICALS INCORPORATED

  公开号：US20140031277A1

  公开（公告）日：2014-01-30

  The present invention relates to compounds of formula I: or a pharmaceutically acceptable salt or mixtures thereof that inhibit serine protease activity, particularly the activity of hepatitis C virus NS 3 -NS 4 A protease. As such, they act by interfering with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The invention further relates to compositions comprising these compounds either for ex vivo use or for administration to a patient suffering from HCV infection and to processes for preparing the compounds. The invention also relates to methods of treating an HCV infection in a patient by administering a composition comprising a compound of this invention. The invention further relates to processes for preparing these compounds.

  本发明涉及以下式I的化合物：或其药学上可接受的盐或混合物，其抑制丝氨酸蛋白酶活性，特别是丙型肝炎病毒NS3-NS4A蛋白酶的活性。因此，它们通过干扰丙型肝炎病毒的生命周期发挥作用，并且还可用作抗病毒剂。本发明还涉及包含这些化合物的组合物，无论是用于体外使用还是用于治疗患有HCV感染的患者的给药，并涉及制备这些化合物的过程。本发明还涉及通过给予本发明化合物的组合物来治疗患有HCV感染的患者的方法。本发明还涉及制备这些化合物的过程。
• METHOD OF MANUFACTURING 4,4"-DIHYDROXY-M-TERPHENYL
  申请人：Honshu Chemical Industry Co., Ltd.

  公开号：US20150158800A1

  公开（公告）日：2015-06-11

  To achieve the object of providing a new method of manufacturing 4,4″-dihydroxy-m-terphenyl, the present invention provides a method of manufacturing 4,4″-dihydroxy-m-terphenyl expressed by General Formula (4) below, characterized in that such method uses a 2-cyclohexene-1-one expressed by General Formula (1) below or 3-hydroxycyclohexane-1-one expressed by General Formula (2) below, and phenol expressed by General Formula (3) below as materials and implements Step (A), Step (B), and Step (C) below, in this order, or Step (D) and Step (C) below, in this order: (In the formulas, each R 2 independently represents an alkyl group, alkoxy group, aromatic hydrocarbon group, or halogen atom, while m independently indicates 0 or an integer of 1 to 4, where R 2 substitution does not occur in the third position when m is 1 or greater, and when m is 2 or greater, R 2 's may be identical or different, and R 2 substitution does not occur in two positions of the same carbon atom. In addition, R 2 and m in General Formula (1) may be identical to or different from R 2 and m in General Formula (2), respectively.) (In the formula, each R 1 independently represents an alkyl group, alkoxy group, aromatic hydrocarbon group, halogen atom, or hydroxyl group, while n indicates 0 or an integer of 1 to 4, where R 1 's may be identical or different when n is 2 or greater.) Step (A): Step to obtain a 1,1,3-trisphenol by causing the 2-cyclohexene-1-one or 3-hydroxycyclohexane-1-one and phenol to react with each other in the presence of a catalyst. Step (B): Step to obtain a bis(4-hydroxyphenyl)cyclohexene by causing the 1,1,3-trisphenol to undergo breakdown reaction. Step (C): Step to obtain a 4,4″-dihydroxy-m-terphenyl by dehydrogenating the bis(4-hydroxyphenyl)cyclohexene. Step (D): Step to obtain a bis(4-hydroxyphenyl)cyclohexene by causing the 2-cyclohexene-1-one or 3-hydroxycyclohexane-1-one and phenol to react with each other in the presence of a catalyst. (In the formula, each R 1 and n is independently the same as the corresponding items in General Formula (3), respectively, while R 2 and m are the same as the corresponding items in General Formula (1) or General Formula (2), respectively.)

  为了提供一种制造4,4″-二羟基-m-联苯的新方法，本发明提供了一种制造4,4″-二羟基-m-联苯的方法，其由下式（4）表示，其特征在于该方法使用下式（1）表示的2-环己烯-1-酮或下式（2）表示的3-羟基环己烷-1-酮以及下式（3）表示的苯酚作为原料，并按照以下顺序实施步骤（A）、（B）和（C），或按照以下顺序实施步骤（D）和（C）：（在公式中，每个R2独立表示烷基、烷氧基、芳香烃基或卤素原子，而m独立表示0或1至4的整数，在m为1或更大时不在第三位置发生R2取代，在m为2或更大时，R2可以相同或不同，并且在同一碳原子的两个位置不发生R2取代。此外，通式（1）中的R2和m可以与通式（2）中的R2和m分别相同或不同。）（在公式中，每个R1独立表示烷基、烷氧基、芳香烃基、卤素原子或羟基，而n表示0或1至4的整数，在n为2或更大时，R1可以相同或不同。）步骤（A）：在催化剂的存在下，使2-环己烯-1-酮或3-羟基环己烷-1-酮和苯酚相互反应以获得1,1,3-三酚。步骤（B）：使1,1,3-三酚发生分解反应以获得双（4-羟基苯基）环己烯。步骤（C）：通过脱氢反应获得4,4″-二羟基-m-联苯。步骤（D）：在催化剂的存在下，使2-环己烯-1-酮或3-羟基环己烷-1-酮和苯酚相互反应以获得双（4-羟基苯基）环己烯。（在公式中，每个R1和n分别独立于相应的通式（3）中的相应项，而R2和m与相应的通式（1）或通式（2）中的相应项相同。）