(E/Z)-1,4-dipropoxybut-2-ene | 26649-88-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E/Z)-1,4-dipropoxybut-2-ene
• 英文别名: trans-1.4-dipropyloxy-butene-(2)；trans-1.4-Dipropyloxy-buten-(2)；(E)-1,4-dipropoxybut-2-ene
• CAS: 26649-88-7
• 化学式: C₁₀H₂₀O₂
• 分子量: 172.268
• InChiKey: ZMDXKVSWINDQMC-AATRIKPKSA-N

物化性质

• 沸点：
  83 °C(Press: 9 Torr)
• 密度：
  0.8631 g/cm3(Temp: 420 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  12
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (Z)-1,4-dipropoxy-but-2-ene 在 3-氰基吡啶 、 [VCl3(thf)3] 、 双氧水 、 甲基三氧化铼(VII) 、 锌 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 81.0h， 生成 (E/Z)-1,4-dipropoxybut-2-ene
  参考文献：
  名称：

  A comparison of electron transfer reagents in the reductive opening of epoxides: reasons for the superiority of titanocene based complexes

  摘要：

  Several commonly used electron transfer reagents were compared in their reactivity towards three epoxides. These substrates were designed to allow for a distinction between competing courses of the reaction. It was found that titanocene reagents were clearly superior due to their low Lewis acidity, high reduction tendency towards epoxides, and low reduction tendency towards the pivotal P-metal oxy radical intermediates. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(02)00697-x

文献信息

• Process for producing 1,4-dicyano-2-butene
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0612720A1

  公开（公告）日：1994-08-31

  The object of the present invention is to provide a process for producing 1,4-dicyano-2-butene in a high yield and in an industrially advantageous way. The present invention relates to a process for producing 1,4-dicyano-2-butene which comprises reacting a butene derivative represented by the formula [1]         R₁-CH₂-CH=CH-CH₂-R₂   [1] or the formula [2]         R₃-CH₂-CHR₄-CH=CH₂   [2] wherein each of R₁ and R₃ represents a hydroxy group, lower acyloxy group, lower alkoxy group or cyano group; and each of R₂ and R₄ represents a hydroxy group, lower acyloxy group or lower alkoxy group, with hydrogen cyanide in the presence of a catalyst comprising a product prepared from a cuprous halide, a non-aromatic amine hydrohalide and at least one member selected from the group consisting of Lewis acids and basic compounds.

  本发明的目的是提供一种以高产率和有利的工业方式生产 1,4-二氰基-2-丁烯的工艺。 本发明涉及一种生产 1,4-二氰基-2-丁烯的工艺，该工艺包括使式 [1] 所代表的丁烯衍生物发生反应 R₁-ch₂-ch=CH-CH₂-R₂ [1] 式中 或式[2］ r₃-ch₂-chr₄-ch=ch₂ [2] 或式 [2] 。 其中 R₁ 和 R₃ 各代表羟基、低级酰氧基、低级烷氧基或氰基；而 R₂ 和 R₄ 各代表羟基、低级酰氧基或低级烷氧基。
• Pudowik, Zhurnal Obshchei Khimii, 1949, vol. 19, p. 1185
  作者：Pudowik

  DOI：——

  日期：——
• US5463103A
  申请人：——

  公开号：US5463103A

  公开（公告）日：1995-10-31
• A comparison of electron transfer reagents in the reductive opening of epoxides: reasons for the superiority of titanocene based complexes
  作者：Andreas Gansäuer、Björn Rinker

  DOI：10.1016/s0040-4020(02)00697-x

  日期：2002.8

  Several commonly used electron transfer reagents were compared in their reactivity towards three epoxides. These substrates were designed to allow for a distinction between competing courses of the reaction. It was found that titanocene reagents were clearly superior due to their low Lewis acidity, high reduction tendency towards epoxides, and low reduction tendency towards the pivotal P-metal oxy radical intermediates. (C) 2002 Elsevier Science Ltd. All rights reserved.