3-methyl-1,2-epoxypentane | 70639-23-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 环氧化物
• 英文名称: 3-methyl-1,2-epoxypentane
• 英文别名: 1-epoxy-3-methylpentane；1,2-epoxy-3-methylpentane；2-(sec-butyl)oxirane；Oxirane, (1-methylpropyl)-；2-butan-2-yloxirane
• CAS: 70639-23-5
• 化学式: C₆H₁₂O
• 分子量: 100.161
• InChiKey: OVFUAYYHQWUHCD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3-methyl-1,2-epoxypentane 、 1,6-己二胺 以affords N,N'-(1,6-hexylene)-bis[2-hydroxy-3-methylpentylamine] (I的产率得到N,N'-(1,6-hexylene)-bis[2-hydroxy-3-methylpentylamine]
  参考文献：
  名称：

  Bridged-bis-hydroxyamide dicarbanilates

  摘要：

  公式为##STR1##的N，N'-桥联的[(O和/或N取代)-2-烷基-2-羟乙基胺]可通过将公式为##STR2##的环氧化物和公式为R'NH--X--NHR'的二胺缩合制备而成。由此得到的产物和二羧酰化物、酸加成盐、N，N'-二氧化物和N，N'-二铵季铵盐在体外具有抗菌活性，并可用作抗菌剂。

  公开号：

  US04140860A1
• 作为产物：
  描述：

  3-甲基-1-戊烯 在 间氯过氧苯甲酸 作用下， 以48%的产率得到3-methyl-1,2-epoxypentane
  参考文献：
  名称：

  五羧基环戊二烯基二酰胺镍催化末端环氧化物氢化硅烷化的伯醇

  摘要：

  报道了由五羧基环戊二烯基 (PCCP) 二酰胺镍络合物和路易斯酸共催化的环氧化物的高效和区域选择性氢化硅烷化。该方法允许末端单取代环氧化物还原开环以形成未支化的伯醇。包括末端环氧化物和非末端环氧化物在内的一系列底物均显示有效，并提供了机械原理。这项工作代表了 PCCP 衍生物作为过渡金属催化配体的首次使用。

  DOI：

  10.1021/acs.orglett.1c03029

文献信息

• Shape selective oxidation using titanium silicates: epoxidation of dihydromyrcene and the model compounds 2-methylpent-2-ene and 3-methylpent-1-ene
  作者：Lee J. Schofield、Owain J. Kerton、Paul McMorn、Donald Bethell、Simon Ellwood、Graham J. Hutchings

  DOI：10.1039/b207425g

  日期：2002.12.6

  The regioselective epoxidation of dihydromyrcene has been studied in the presence of the titanium-containing silicates TS-1 and TiAlβ using aqueous hydrogen peroxide, tert-butyl hydroperoxide and urea–hydrogen peroxide as oxidants. Epoxides were observed with TS-1 and aqueous hydrogen peroxide, and with TiAlβ when used in conjunction with the urea–hydrogen peroxide complex and tert-butyl hydroperoxide. Epoxidation occurs exclusively at the more electron-rich double bond in the presence of both catalysts. The epoxidation of dihydromyrcene has also been studied under triphasic conditions (two immiscible liquid phases and one catalyst phase) rather than biphasic conditions (one liquid phase and one catalyst phase). The alcoholysis reaction of the resulting epoxide was found to proceed via the more stabilised cation intermediate under biphasic conditions. In contrast, alcoholysis under triphasic conditions proceeded to form both the favoured (major) and unfavoured (minor) ether alcohols in ratios up to 2 ∶ 1. Model compounds, (2-methylpent-2-ene and 3-methylpent-1-ene) which simulate the electronic environment around each of the double bonds in dihydromyrcene, have been used to study the degree of epoxidation of each double bond separately and under competitive conditions. When the model substrates are studied separately, the rate of epoxidation of the two double bonds are comparable. When the model substrates are epoxidised in a competitive manner, the electron-deficient double bond is oxidised in preference which is different to that observed for dihydromyrcene.

  二氢美克烯的选择性环氧化在含钛的硅酸盐TS-1和TiAlβ的存在下进行了研究，使用的氧化剂包括水合过氧化氢、叔丁基过氧化氢和尿素-过氧化氢复合物。在TS-1和水合过氧化氢的体系中观察到了环氧化物，在TiAlβ的体系中则需与尿素-过氧化氢复合物和叔丁基过氧化氢共同使用。环氧化反应仅在更富电子的双键上进行，在两种催化剂的存在下均为如此。二氢美克烯的环氧化反应还在三相条件下（两个不混溶的液相和一个催化剂相）进行了研究，而非在两相条件下（一个液相和一个催化剂相）。结果发现，在两相条件下生成的环氧化物的醇解反应通过更稳定的阳离子中间体进行。相比之下，在三相条件下的醇解反应则同时形成了主要（ favored）和次要（unfavored）的醚醇，其比例可达2:1。为了研究每个双键的环氧化程度，使用了模拟二氢美克烯中每个双键周围电子环境的模型化合物（2-甲基戊-2-烯和3-甲基戊-1-烯），在竞争条件下分别进行了单独研究。当单独研究这些模型底物时，两个双键的环氧化速率相当。然而，在竞争性环氧化中，电子不足的双键优先被氧化，这与二氢美克烯的观察结果有所不同。
• Process for producing 1,3-dialkyl-2-imidazolidinone compound
  申请人：——

  公开号：US20030009035A1

  公开（公告）日：2003-01-09

  There is provided a process for preparing a 1,3-dialkyl-2-imidazolidinone by using an alkylene oxide as a first component, using at least one of (A) carbon dioxide and a monoalkylamine; (B) a carbon dioxide compound of the monoalkylamine; and (C) an 1,3-dialkylurea, reacting the first and second components by heating at 50 ° C. or higher to give 1,3-dialkyl-2-imidazolidinone, characterized in that the total molar amount of a molar feed amount of the monoalkylamine included in the component (A), a molar feed amount of the monoalkylamine part of the carbon dioxide compound of monoalkylamine, component (B), and the double of a molar feed amount of the 1,3-dialkylurea, component (C), is at least three folds of a molar feed amount of the alkylene oxide. The preparation process of this invention uses an industrially readily available alkylene oxide as a starting material and can be suitably conducted with a higher yield in an industrial scale.

  提供了一种制备1,3-二烷基-2-咪唑烷酮的方法，该方法使用乙烯氧化物作为第一组分，至少使用以下之一：（A）二氧化碳和一种单烷基胺；（B）单烷基胺的二氧化碳化合物；和（C）1,3-二烷基脲，通过加热至50°C或更高温度来使第一和第二组分反应，得到1,3-二烷基-2-咪唑烷酮，其特点是：单烷基胺的摩尔进料量包括在组分（A）中的单烷基胺的摩尔进料量，单烷基胺的二氧化碳化合物中的单烷基胺部分的摩尔进料量，组分（B），以及1,3-二烷基脲的摩尔进料量的两倍，组分（C），至少是乙烯氧化物的摩尔进料量的三倍。这种发明的制备过程使用工业上易得的乙烯氧化物作为起始物质，并且可以在工业规模上以更高的产率进行适当的操作。
• Process for the alkoxylation of monools in the presence of metallo-organic framework materials
  申请人：Muller Ulrich

  公开号：US20050004404A1

  公开（公告）日：2005-01-06

  The present invention relates to a process for the alkoxylation of a monool with at least one alkoxylating agent to an alkoxylated alcohol wherein a catalyst is employed which comprises a metallo-organic framework material of metal ions and at least bidentate coordinately bound organic ligands.

  本发明涉及一种使用至少一种烷氧基化试剂对单质进行烷氧基化的方法，生成烷氧基化醇。在该方法中，使用了一个催化剂，该催化剂包括金属离子和至少双齿配位有机配体的金属有机框架材料。
• Modified ethylene-vinyl alcohol copolymer and method for the production thereof
  申请人：——

  公开号：US20040096683A1

  公开（公告）日：2004-05-20

  Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.

  提供的是一种改性乙烯-醋酸乙烯共聚物(C)，其乙烯含量为5至55摩尔％，其中含有一种特定的结构单元(I)，其含量为0.3至40摩尔％，可通过将乙烯-醋酸乙烯共聚物(A)与分子量不超过500的单官能环氧化合物(B)反应而获得。该改性乙烯-醋酸乙烯共聚物(C)的制备方法包括在挤出机中熔融和揉捏乙烯-醋酸乙烯共聚物(A)与单官能环氧化合物(B)。由于其中包含了特定的结构单元(I)，改性乙烯-醋酸乙烯共聚物(C)在透明度、可伸展性、柔韧性和耐弯曲性方面优于未改性的乙烯-醋酸乙烯共聚物(A)，因此可以用作在需要上述性能能力的各种应用中的障壁材料。
• Resin composition and multi-layer structures
  申请人：Tai Shinji

  公开号：US20050147778A1

  公开（公告）日：2005-07-07

  Provided is a resin composition comprising 1-99% by weight of a modified ethylene-vinyl alcohol copolymer (C) having an ethylene content of 5-55 mol %, which contains a specific structural unit (I) in an amount of 0.3-40 mol % and can be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500, and 1-99% by weight of a thermoplastic resin (T 1 ) other than (C). Moreover, a multilayer structure in which the resin composition and a thermoplastic resin (T 2 ) are laminated is also provided. Thus, a resin composition superior in barrier properties, transparency, stretchability, flexibility, flexing resistance and interlayer adhesiveness and various kinds of molded articles made thereof are provided.

  本发明提供了一种树脂组合物，包括重量百分比为1-99%的改性乙烯-醇酸共聚物(C)，该共聚物的乙烯含量为5-55摩尔％，其中含有特定的结构单元(I)，其含量为0.3-40摩尔％，可以通过将乙烯-醇酸共聚物(A)与分子量不超过500的单官能环氧化合物(B)反应而获得，以及重量百分比为1-99%的热塑性树脂(T1)，该树脂组合物和热塑性树脂(T2)层压形成多层结构。因此，提供了一种优异的阻隔性、透明性、可拉伸性、柔韧性、耐弯曲性和层间粘附性的树脂组合物及其各种成型制品。

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