乙基4,5-二氢-2-呋喃羧酸酯 | 116282-14-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 中文名称: 乙基4,5-二氢-2-呋喃羧酸酯
• 英文名称: ethyl 3,4-dihydrofuran-2-carboxylate
• 英文别名: 4,5-dihydro-furan-2-carboxylic acid ethyl ester；4,5-Dihydro-furan-2-carbonsaeure-aethylester；Ethyl 4,5-dihydrofuran-2-carboxylate；ethyl 2,3-dihydrofuran-5-carboxylate
• CAS: 116282-14-5
• 化学式: C₇H₁₀O₃
• 分子量: 142.155
• InChiKey: BIYJMHBVSUMWGX-UHFFFAOYSA-N

物化性质

• 沸点：
  185.6±29.0 °C(Predicted)
• 密度：
  1.135±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-chloro-tetrahydro-furan-2-carbonitrile 在 盐酸 、 二乙胺 作用下， 生成 乙基4,5-二氢-2-呋喃羧酸酯
  参考文献：
  名称：

  Cuvigny, Annales de Chimie (Cachan, France), 1956, vol. <13> 1, p. 475,489

  摘要：

  DOI：

文献信息

• The use of diazophosphonates in the synthesis of cyclic ethers
  作者：Christopher J. Moody、Eric-Robert H.B. Sie、Janusz J. Kulagowski

  DOI：10.1016/s0040-4020(01)88479-9

  日期：1992.1

  described. The first involves the rhodium(II) catalysed O-H insertion of 2-propanol followed by Wadsworth-Emmons reaction to give the enol ethers 3, and deprotection and cyclisation to the cyclic enol ethers 5. The second route involves the preparation of aldehyde and ketone phosphonates 9, also by rhodium carbenoid O-H insertion reactions, followed by functional group interconversion. On treatment

  描述了两种基于重氮膦酸酯的环状醚的路线。首先涉及2-丙醇的铑（II）催化的OH插入，然后进行Wadsworth-Emmons反应以生成烯醇醚3，然后将其脱保护并环化成环状烯醇醚5。第二种途径涉及醛和酮膦酸酯9的制备，也通过铑类胡萝卜素OH插入反应，然后进行官能团互变而制备。在用氢化钠处理时，膦酸酯9经历分子内的Wadsworth-Emmons反应以给出环状醚13。
• Diazophosphonates in cyclic ether synthesis. Use of the intramolecular Wadsworth-Emmons reaction
  作者：Christopher J. Moody、Eric-Robert H.B. Sie、Janusz J. Kulagowski

  DOI：10.1016/0040-4039(91)80451-b

  日期：1991.11

  Treatment of the phosphonates 3, derived from the diazophosphonates 1 and 2 by rhodium carbenoid O-H insertion reactions, with sodium hydride in THF results in intramolecular Wadsworth-Emmons reaction and formation of the cyclic ethers 4.

  通过铑类胡萝卜素OH插入反应衍生自重氮膦酸酯1和2的膦酸酯3与氢化钠在THF中的反应导致分子内Wadsworth-Emmons反应并形成环醚4。
• Process for preparing polyolefins
  申请人：Nippon Petrochemicals Co., Ltd.

  公开号：EP0267794A2

  公开（公告）日：1988-05-18

  A process for preparing a polyolefin by homopolymerizing or copolymerizing an olefin or olefins using a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being obtained by contacting at least a titanium compound and/or a vanadium compound with a solid material (a), said solid material (a) being obtained by contacting the following components (1), (2) and (3) with one another: (1) a silicon oxide and/or an aluminum oxide, (2) a magnesium halide, and (3) an organometallic compound.

  一种使用由固体催化剂组分和有机金属化合物组成的催化剂，通过均聚或共聚一种或多种烯烃制备聚烯烃的工艺，所述固体催化剂组分通过将至少一种钛化合物和/或钒化合物与固体材料（a）接触而获得，所述固体材料（a）通过将以下组分（1）、（2）和（3）相互接触而获得：（1）氧化硅和/或氧化铝，（2）卤化镁，和（3）有机金属化合物。
• High performance alkali - swellable rheological additives for aqueous systems
  申请人：RHEOX INTERNATIONAL, INC.

  公开号：EP0705852A1

  公开（公告）日：1996-04-10

  A composition of matter useful as a rheological additive for aqueous compositions comprising the reaction product of (a) about 15 to 80 percent by weight of one or more C₃-C₈ α,β-ethylenically unsaturated carboxylic acid monomers; (b) about 15 to 85 percent by weight of one or more copolymerizable vinyl non-ionic ethylenically unsaturated monomers; and (c) about 0.5 to 25 percent by weight of one or more vinyl monomers containing an aralkyl substituted phenol hydrophobe. The compositions are particularly useful in paints, especially latex and other water-miscible paints, and other coating compositions.

  一种可用作水性组合物流变添加剂的物质组合物，其包含以下物质的反应产物：(a) 一种或多种 C₃-C₈ α，β-乙烯基不饱和羧酸单体约 15%至 80%（重量）；(b) 一种或多种可共聚的乙烯基非离子乙烯基不饱和单体约 15%至 85%（重量）；以及 (c) 一种或多种含有烷基取代的苯酚憎水物的乙烯基单体约 0.5%至 25%（重量百分比）的一种或多种含有烷基取代苯酚巯基的乙烯基单体。这些组合物特别适用于油漆，尤其是乳胶漆和其它水溶性油漆，以及其它涂料组合物。
• Polysiloxane copolymers from Michael adduct reactions
  申请人：DOW CORNING CORPORATION

  公开号：EP0844268A1

  公开（公告）日：1998-05-27

  The invention is a composition formed by the reaction of (A) at least one polysiloxane selected from         R3SiO(SiR2O)xSiR3     (i) or where: x has an average value of from 0 to 1000, z has a value of at least 3, R is independently selected from the group consisting of hydroxyl, alkoxy, tri-fluoropropyl, an alkyl of 1 to 4 carbon atoms, phenyl and an amine functional group, with the proviso that at least one R on the polysiloxane is an amine functional group; and (B) at least one acrylate having the formula where R is H or CH3, n ≥ 1 and Q is an organic group.

  本发明是一种由以下物质反应形成的组合物 (A) 至少一种聚硅氧烷，选自 R3SiO(SiR2O)xSiR3 (i) 或 其中 x 的平均值为 0 至 1000、 z 的值至少为 3、 R 独立选自以下组别 由羟基、烷氧基、三氟丙基、1 至 4 个碳原子的烷基、苯基和胺官能团组成的组，但聚硅氧烷上至少有一个 R 是胺官能团；以及 (B) 至少一种丙烯酸酯，其式为 其中 R 为 H 或 CH3，n ≥ 1，Q 为有机基团。