2,3,4-trimethyl-glutaric acid | 774163-07-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2,3,4-trimethyl-glutaric acid
• 英文别名: 2,3,4-Trimethyl-glutarsaeure；2,3,4-Trimethylpentanedioic acid
• CAS: 774163-07-4
• 化学式: C₈H₁₄O₄
• 分子量: 174.197
• InChiKey: XEROVFZPMWCLGG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,3,4-trimethyl-glutaric acid 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 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
• 作为产物：
  描述：

  惕各酸乙酯 在 氢氧化钾 、 sodium 作用下， 以 乙醇 为溶剂， 反应 4.0h， 生成 2,3,4-trimethyl-glutaric acid
  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

• REUSABLE PRINT MEDIUM AND METHOD OF MANUFACTURING THEREOF
  申请人：OCE TECHNOLOGIES B.V.

  公开号：US20130137805A1

  公开（公告）日：2013-05-30

  The present invention relates to a reusable print medium comprising a substrate and a sacrificial layer. The sacrificial layer contains a hotmelt composition at least comprising an amorphous material. The amorphous material is a resin being a reaction product of a first monomer A, said first monomer A being a polyhydroxyl alcohol comprising X hydroxyl functional groups, wherein X≧2, monomer A optionally comprises a primary or secondary amine functionality; a second monomer B, being an aromatic monocarboxylic acid; a third monomer C, said third monomer C being able to form an ester linkage with an alcohol and/or an amide linkage with a primary or secondary amine; and optionally, a fourth monomer D, being an aromatic monocarboxylic acid different from the second monomer B. The sacrificial layer including the printed image may be removed from the substrate by applying heat. A new sacrificial layer may be applied such that the reusable print medium is ready to be reused. The present invention also relates to a method of manufacturing a reusable print medium according to the present invention, a method of printing and recycling such a print medium and an apparatus for printing and recycling such a print medium.

  本发明涉及一种可重复使用的印刷介质，包括基底和牺牲层。牺牲层含有至少包括非晶态材料的热熔组合物。该非晶态材料是一种树脂，是第一单体A的反应产物，第一单体A是一种聚羟基醇，包括X个羟基官能团，其中X≥2，单体A可选包括一种主链或侧链氨基官能团；第二单体B是一种芳香单羧酸；第三单体C能够与醇形成酯键和/或与一种主链或侧链氨基形成酰胺键；可选地，第四单体D是一种与第二单体B不同的芳香单羧酸。可以通过施加热量从基底中去除包括印刷图像的牺牲层。可以应用新的牺牲层，使可重复使用的印刷介质准备好被重用。本发明还涉及一种制造可重复使用的印刷介质的方法，一种印刷和回收这样的印刷介质的方法，以及一种印刷和回收这样的印刷介质的装置。
• Process for preparation of a gelled polyester for toner
  申请人：MITSUBISHI RAYON CO., LTD.

  公开号：EP0333498A2

  公开（公告）日：1989-09-20

  Disclosed is a crosslinked polyester for a toner, and a process for its manufacture wherein the polyester has an acid value of 5 to 20 mgKOH/g, a flow index of 0.1 x 10⁻⁴ to 300 x 10⁻⁴ ml/sec and softening point lower than 145°C, the polyester being formed by mixing a dicarboxylic acid component, a diol component and at least one crosslinking component selected from a polyfunctional carboxylic acid component having a trivalency or a higher valency and a polyhydric alcohol component having a trivalency or a higher valency at a mixing ratio represented by the following formula (1), reacting the mixture at a reaction ratio represented by the following formula (2) and subjecting the esterification product to polycondensation and crosslinking. 0.8 ≦ R ≦ 1 + 5a      (1) 0.7 ≦ P ≦ [R/(1 + a)]1/2      (2) wherein R is the ratio of the mole number of the total alcohol components to the mole number of the total acid components, a is the ratio of the sum of the mole number of the polyvalent carboxylic acid component and the mole number of the polyhydric alcohol component to the mole number of the total acid components, and P is the conversion of the carboxylic acid components. A toner comprising this crosslinked polyester as the binder has an excellent offset-preventing property, low-temperature fixing property and blocking resistance and good charging characteristics with a high moisture resistance, and gives a copied image having good sharpness and image density.

  本发明公开了一种用于墨粉的交联聚酯及其制造工艺，其中聚酯的酸值为 5 至 20 mgKOH/g，流动指数为 0.1×10-⁴至300×10-⁴毫升/秒，软化点低于145℃，该聚酯是通过将二羧酸组分、二元醇组分和至少一种交联组分按下式(1)表示的混合比混合而形成的，该交联组分选自具有三价或更高价的多官能团羧酸组分和具有三价或更高价的多元醇组分、以下式(2)表示的反应比对混合物进行反应，并将酯化产物进行缩聚和交联。 0.8 ≦ R ≦ 1 + 5a (1) 0.7 ≦ P ≦ [R/(1 + a)]1/2 (2) 其中，R 是总醇组分摩尔数与总酸组分摩尔数之比，a 是多价羧酸组分摩尔数与多元醇组分摩尔数之和与总酸组分摩尔数之比，P 是羧酸组分的转化率。 以这种交联聚酯为粘合剂的墨粉具有极佳的胶印防止性能、低温固着性能和抗阻塞性能，以及良好的充电特性和较高的防潮性能，复制的图像具有良好的清晰度和图像密度。
• Modifizierte Polyesterharze, ein Verfahren zu deren Herstellung und Toner, die solche Polyesterharze enthalten
  申请人：BAYER AG

  公开号：EP0492237A1

  公开（公告）日：1992-07-01

  Modifizierte Polyesterharze enthalten Polyesterblöcke, die aus Dicarbonsäuren und Dialkoholen erhalten wurden, Gruppierungen der Formeln mit X = Z = einem Kohlenwasserstoffrest mit 1 bis 20 C-Atomen und Y = einem Kohlenwasserstoffrest mit 2 bis 25 C-Atomen, sowie gegebenenfalls Gruppierungen stammend aus Vernetzern. Sie können als Basispolymere für Toner verwendet werden.

  改性聚酯树脂含有从二羧酸和二元醇中获得的聚酯块，其组式为 其中 X = Z = 具有 1 至 20 个碳原子的烃残基，Y = 具有 2 至 25 个碳原子的烃残基，以及由交联剂衍生的基团。它们可用作调色剂的基础聚合物。
• METAL CATALYST AND ITS USE
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP1618953A1

  公开（公告）日：2006-01-25

  A metal catalyst obtained by contacting (A) at least one metal or metal compound selected from i) tungsten compounds composed of tungsten and an element of group IIIb, IVb, Vb, or VIb, ii) molybdenum compounds composed of molybdenum and an element of group IIIb, IVb, Vb, or VIb, and iii) tungsten metal and molybdenum metal; (B) at least one compound selected from tertiary amine compounds, tertiary amine oxide compounds, nitrogen-containing aromatic compounds and nitrogen-containing aromatic N-oxide compounds; (C) hydrogen peroxide; and (D) a phosphate compound, is provided.

  金属催化剂 (A) 至少一种金属或金属化合物，选自 i) 钨化合物，由钨和第 IIIb、IVb、Vb 或 VIb 族元素组成、 由钼和第 IIIb、IVb、Vb 或 VIb 族元素组成的钼化合物，以及 iii) 金属钨和金属钼； (B) 至少一种选自叔胺化合物、叔胺氧化物化合物、含氮芳香族化合物和含氮芳香族 N-氧化物化合物的化合物； (C) 过氧化氢；以及 (D) 磷酸盐化合物。
• Reusable print medium and method of manufacturing thereof
  申请人：Océ-Technologies B.V.

  公开号：EP2596960A2

  公开（公告）日：2013-05-29

  The present invention relates to a reusable print medium (200) comprising a substrate (201) and a sacrificial layer (202). The sacrificial layer contains a hotmelt composition at least comprising an amorphous material. The amorphous material is a resin being a reaction product of a first monomer A, said first monomer A being a polyhydroxyl alcohol comprising X hydroxyl functional groups, wherein X ≥ 2, monomer A optionally comprises a primary or secondary amine functionality; a second monomer B, being an aromatic monocarboxylic acid; a third monomer C, said third monomer C being able to form an ester linkage with an alcohol and/or an amide linkage with a primary or secondary amine; and optionally, a fourth monomer D, being an aromatic monocarboxylic acid different from the second monomer B. The sacrificial layer including the printed image may be removed from the substrate by applying heat. A new sacrificial layer may be applied such that the reusable print medium is ready to be reused. The present invention also relates to a method of manufacturing a reusable print medium according to the present invention and a method of printing and recycling such a print medium.

  本发明涉及一种可重复使用的打印介质（200），它包括一个基底（201）和一个牺牲层（202）。牺牲层包含一种热熔胶组合物，至少包括一种非晶材料。无定形材料是一种树脂，是第一单体 A 的反应产物，所述第一单体 A 是一种多羟基醇，包含 X 个羟基官能团，其中 X ≥ 2，单体 A 可选择包含伯胺或仲胺官能团；第二单体 B，为芳香族单羧酸； 第三单体 C，所述第三单体 C 能与醇形成酯连接和/或与伯胺或仲胺形成酰胺连接；以及 第四单体 D，为不同于第二单体 B 的芳香族单羧酸。可通过加热将包括印刷图像的牺牲层从基底上去除。然后再涂上一层新的牺牲层，这样可重复使用的打印介质就可以重复使用了。 本发明还涉及根据本发明制造可重复使用打印介质的方法，以及打印和回收这种打印介质的方法。