2-(2-carboxyethyl)-4-methyl-4-pentanolide | 86199-41-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: 2-(2-carboxyethyl)-4-methyl-4-pentanolide
• 英文别名: 3-(5,5-dimethyl-2-oxooxolan-3-yl)propanoic acid
• CAS: 86199-41-9
• 化学式: C₉H₁₄O₄
• 分子量: 186.208
• InChiKey: FRBZADVWBLEINH-UHFFFAOYSA-N

物化性质

• 熔点：
  55-57 °C
• 沸点：
  159-160 °C(Press: 1 Torr)
• 密度：
  1.139±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(2-carboxyethyl)-4-methyl-4-pentanolide 、 碘甲烷 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 3-(5,5-Dimethyl-2-oxo-tetrahydro-furan-3-yl)-propionic acid methyl ester
  参考文献：
  名称：

  三氟甲磺酸催化烯烃羧酸的环异构化反应

  摘要：

  摘要 三氟甲磺酸催化的各种不同取代的不饱和羧酸的环化反应以良好的收率提供了选择性取代的内酯。该反应使用 0.5% 至 5% 摩尔比的催化剂，并且可以在没有溶剂的情况下进行。

  DOI：

  10.1081/scc-200046534
• 作为产物：
  描述：

  2-ethoxycarbonyl-2-(2-ethoxycarbonylethyl)-4-methyl-4-pentanolide 在 sodium hydroxide 作用下， 以 水 为溶剂， 75.0~300.0 ℃ 、2.67 kPa 条件下， 反应 4.0h， 生成 2-(2-carboxyethyl)-4-methyl-4-pentanolide
  参考文献：
  名称：

  Condensation of 4-Substituted 2-Ethoxycarbonyl-4-pentanolides with  , -Unsaturated Compounds

  摘要：

  Condensation of 4-substituted 2-ethoxycarbonyl-4-pentanolides with methyl acrylate and acrylonitrile under Michael reaction conditions in the presence of sodium methylate affords 4-substituted 2-ethoxycarbonyl-2-(2-methoxycarbonyl- or cyano)ethyl-4-pentanolides. The latter were subjected to alkaline hydrolysis, and 4-substituted 2-carboxy-2-(2-carboxyethyl)-4-pentanolides were isolated which on decarboxylation yielded 4-substituted 2-(2-carboxyethyl)-4-pentanolides. The partial hydrolysis of 2-ethoxy-carbonyl-2-(2-cyanoethyl)-4-pentanolides gave rise to previously unknown cyanolactones.

  DOI：

  10.1023/b:rujo.0000010182.81247.09

文献信息

• Polymer for water treatment
  申请人：Baum Pia

  公开号：US20070055022A1

  公开（公告）日：2007-03-08

  A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.
• USE OF CARBOXYLATE-CONTAINING POLYMERS AS ADDITIVES IN CERAMIC MATERIALS
  申请人：Guzmann Marcus

  公开号：US20090105390A1

  公开（公告）日：2009-04-23

  The present invention relates to the use of homopolymers or copolymers of (meth)acrylic acid or copolymers of C 3 -C 40 -monoolefins with ethylenically unsaturated C 4 -C 6 -dicarboxylic anhydrides as additives in ceramic masses, in particular in brick earth and clay for producing building ceramics such as bricks and roofing tiles, and also ceramic masses comprising these additives.
• Scale-reducing additive for automatic dishwashing systems
  申请人：Manna Joseph

  公开号：US20110224119A1

  公开（公告）日：2011-09-15

  An automatic dishwashing detergent composition having at least two components. The first component is a polymer containing polymerized residues of at least one C 3 -C 6 carboxylic acid monomer and a lactone end group. The second component is a biodegradable builder selected from among nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycine-N,N-diacetic acid, methylglycine-N,N-diacetic acid, 2-hydroxyethyliminodiacetic acid, glutamic acid-N,N-diacetic acid, 3-hydroxy-2,2′-iminodisuccinate, S,S-ethylenediaminedisuccinate aspartic acid-diacetic acid, N,N′-ethylenediamine disuccinic acid, iminodisuccinic acid, aspartic acid, aspartic acid-N,N-diacetate, beta-alaninediacetic acid, polyaspartic acid, salts thereof and combinations thereof.
• US7405263B2
  申请人：——

  公开号：US7405263B2

  公开（公告）日：2008-07-29
• US8283301B2
  申请人：——

  公开号：US8283301B2

  公开（公告）日：2012-10-09