2,3,4-trimethyl-1,5-pentanediol | 85373-83-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,4-trimethyl-1,5-pentanediol
• 英文别名: 2,3,4-trimethylpentane-1,5-diol
• CAS: 85373-83-7
• 化学式: C₈H₁₈O₂
• 分子量: 146.23
• InChiKey: ZABMGUITRPYVRH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,3,4-trimethyl-1,5-pentanediol 在 Amberlyst 15 作用下， 生成 r-3,c-4,t-5-trimethyltetrahydropyran 、 r-3,t-4,c-5-trimethyltetrahydropyran 、 r-3,c-4,c-5-trimethyltetrahydropyran
  参考文献：
  名称：

  Carbon-13 NMR spectra of saturated heterocycles: XI—Tetrahydropyrans (oxanes)

  摘要：

  AbstractThe 13C NMR spectra of 62 oxanes (tetrahydropyrans) with and without methyl substituents at various ring positions, some of them bearing in addition (or instead) ethyl, vinyl, ethynyl, carbomethoxy and methylol substituents at C‐2, have been recorded, and the 294 resulting chemical shifts have been correlated by multiple linear regression analysis. Axial and equatorial α‐, β‐, γ‐, δ‐, gem‐ and vic‐parameters for shifts caused by methyl groups at all ring positions, and similar parameters for Et,—CHCH2,—CCH, CO2Me and CH2OH groups at C‐2, are reported. Standard deviations of the parameters are, in most cases, within 0.3 ppm and the agreement of calculated and experimental shifts is excellent. This is probably the largest parameter set of this type extant. 13C NMR spectra of a number of additional substituted tetrahydropyrans, and of 3,6‐dihydro‐2H‐pyrans and 3,4‐dihydro‐2H‐pyrans, are tabulated and discussed.

  DOI：

  10.1002/omr.1270210205
• 作为产物：
  描述：

  惕各酸乙酯 在 氢氧化钾 、 lithium aluminium tetrahydride 、 sodium 作用下， 以 乙醚 、 乙醇 为溶剂， 反应 4.0h， 生成 2,3,4-trimethyl-1,5-pentanediol
  参考文献：
  名称：

  Carbon-13 NMR spectra of saturated heterocycles: XI—Tetrahydropyrans (oxanes)

  摘要：

  AbstractThe 13C NMR spectra of 62 oxanes (tetrahydropyrans) with and without methyl substituents at various ring positions, some of them bearing in addition (or instead) ethyl, vinyl, ethynyl, carbomethoxy and methylol substituents at C‐2, have been recorded, and the 294 resulting chemical shifts have been correlated by multiple linear regression analysis. Axial and equatorial α‐, β‐, γ‐, δ‐, gem‐ and vic‐parameters for shifts caused by methyl groups at all ring positions, and similar parameters for Et,—CHCH2,—CCH, CO2Me and CH2OH groups at C‐2, are reported. Standard deviations of the parameters are, in most cases, within 0.3 ppm and the agreement of calculated and experimental shifts is excellent. This is probably the largest parameter set of this type extant. 13C NMR spectra of a number of additional substituted tetrahydropyrans, and of 3,6‐dihydro‐2H‐pyrans and 3,4‐dihydro‐2H‐pyrans, are tabulated and discussed.

  DOI：

  10.1002/omr.1270210205

文献信息

• Method for producing polyurethane foam
  申请人：KAO CORPORATION

  公开号：EP1801139A2

  公开（公告）日：2007-06-27

  A method for producing a polyurethane foam having a density of 0.1 g/cm3 or more, including the step of reacting a polyol component and a polyisocyanate component, the polyol component containing (polyol A): a polyester-polyol having a hydroxyl value of from 45 to 115 mgKOH/g, obtained by polycondensing a polyhydric alcohol component containing a polyhydric alcohol having a side chain and a polybasic acid component; and (polyol B): a polyether-polyol having 3 functional groups and a hydroxyl value of from 15 to 40 mgKOH/g, wherein the weight ratio of the polyol A to the polyol B, i.e. polyol A/polyol B, is from 1.2 to 3. The polyurethane foam obtained according to the method of the present invention can be suitably used, for example, in shoe soles, cushioning materials for automobiles and other transportation vehicles, furniture, beddings, and the like.

  一种生产密度为 0.1 g/cm3 或更高的聚氨酯泡沫的方法，包括使多元醇组分和多异氰酸酯组分反应的步骤，该多元醇组分包含 (多元醇 A)：羟基值为 45 至 115 mgKOH/g 的聚酯多元醇，由包含具有侧链的多元醇和多基酸组分的多元醇组分缩聚而得；以及 (多元醇 B)：具有 3 个官能团且羟基值在 15 至 40 mgKOH/g 之间的聚醚多元醇，其中多元醇 A 与多元醇 B 的重量比，即多元醇/多元醇 B 的重量比，为 1：1。根据本发明方法得到的聚氨酯泡沫可适当用于鞋底、汽车和其他运输工具的缓冲材料、家具、床上用品等。
• MULTI-LAYER MDO HEAT-RESISTANT HEAT-SHRINKABLE FILM
  申请人：SK Chemicals Co., Ltd.

  公开号：EP3546213A1

  公开（公告）日：2019-10-02

  The present invention relates to an MDO thermoresistant heat-shrinkable multilayer film of a copolymer polyester having excellent thermal resistance. In particular, the present invention provides an MDO thermoresistant heat-shrinkable multilayer film that includes multiple skin layers capable of improving thermal resistance formed on a substrate layer capable of providing high shrinkage, and simultaneously has excellent thermal resistance and high shrinkage properties through MD orientation instead of the conventional TD orientation method.

  本发明涉及一种具有优异耐热性的共聚聚酯 MDO 耐热热缩多层膜。特别是，本发明提供了一种 MDO 耐热热缩多层膜，它包括多个能够提高热阻的表皮层，形成在能够提供高收缩的基底层上，通过 MD 取向而不是传统的 TD 取向方法，同时具有优异的热阻和高收缩性能。
• CONCENTRATED, STABLE FABRIC SOFTENING COMPOSITIONS INCLUDING CHELANTS
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0839180A1

  公开（公告）日：1998-05-06
• CONCENTRATED, STABLE FABRIC SOFTENING COMPOSITION
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP0842250A1

  公开（公告）日：1998-05-20
• CONCENTRATED, STABLE, PREFERABLY CLEAR, FABRIC SOFTENING COMPOSITION CONTAINING AMINE FABRIC SOFTENER
  申请人：THE PROCTER & GAMBLE COMPANY

  公开号：EP1002035A1

  公开（公告）日：2000-05-24