2,3-dihydroxy-2-(1-methylethyl)butanoic acid | 466-18-2

• 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-dihydroxy-2-(1-methylethyl)butanoic acid
• 英文别名: trachelantic acid；viridifloric acid；Viridiflorinsaeure；Viridiflor-saeure；Viridiflorsaeure；2-hydroxy-2-(1-hydroxyethyl)-3-methylbutanoic acid
• CAS: 466-18-2
• 化学式: C₇H₁₄O₄
• mdl: MFCD19301153
• 分子量: 162.186
• InChiKey: KXEISHUBUXWXGY-UHFFFAOYSA-N

物化性质

• 熔点：
  148-150 °C
• 沸点：
  331.7±27.0 °C(Predicted)
• 密度：
  1.205±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.857
• 拓扑面积：
  77.8
• 氢给体数：
  3
• 氢受体数：
  4

安全信息

• 海关编码：
  2918290000

反应信息

• 作为反应物：
  描述：

  2,3-dihydroxy-2-(1-methylethyl)butanoic acid 在 sodium carbonate 、 甲基磺酰氯 作用下， 以 二氯甲烷 为溶剂， 生成 (+)-(2R,3R)-2-hydroxy-2-(1-methylethyl)-3-butanolide 、 (2R,3S)-2-hydroxy-2-(1-methylethyl)-3-butanolide
  参考文献：
  名称：

  The pheromone system of the male danaine butterfly, Idea leuconoe

  摘要：

  Male Idea leuconoe butterflies release a complex mixture of volatiles from their pheromone glands (hairpencils) during courtship. The pheromone components geranyl methyl thioether (2), viridifloric beta-lactone (3) and 6-hydroxy-4-dodecanolide (10) have been synthesized for the first lime. Therefore, the structural assignment of these new natural products could be proved. Related 7-hydroxy-5-alkanolides are also present in the extract. The volatiles are embedded in a lipidic matrix with more than 150 components. This matrix consists of alkanes, alkenes, 3,5-dialkyltetrahydrofurans, secondary alkanols and alkenols as well as alkanones and alkenones. Several regioisomers of the oxidized hydrocarbons occur. The elucidation of double bond positions has been performed by MS using DMDS adducts. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/0968-0896(96)00011-9
• 作为产物：
  描述：

  Trachelanthamin 在 sodium hydroxide 作用下， 反应 2.0h， 生成 2,3-dihydroxy-2-(1-methylethyl)butanoic acid 、 颈花脒
  参考文献：
  名称：

  The alkaloids of Heliotropium curassavicum

  摘要：

  Heliotropium curassavicum Linn.的主要生物碱已被确定。 已被确认。它们是 curassavine(4)，一种新酸 curassavic acid [2-hydroxy-2-(1-) curassavine (4)，它是一种新酸 curassavic acid [2-hydroxy-2-(1-hydroxyethyl)-3- methylpentanoic acid] (3)的 trachelanthamidine 酯，coromandaline (1)，这是一种(+)-viridifloric 酸（以前在自然界中并不常见）与(+)-viridifloric 酸的酯，以及 heliovicine (2)，这是一种 和 heliovicine (2)，后者是气管蓝脒与不常见的气管蓝酸 (-)- 对映异构体的酯。

  DOI：

  10.1071/ch9801357

文献信息

• Resin composition
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0368283A2

  公开（公告）日：1990-05-16

  A resin composition which is excellent in balance of mechanical properties and processability, solvent resistance and chemical resistance comprising: (a) a polyphenylene ether resin, (b) a thermoplastic polyester resin, and (c) a compound represented by the formula:         (HO)mmR²(COOR²)n wherein R¹ represents a straight or branched chain saturated aliphatic hydrocarbon group of 2-20 carbon atoms, R² represents a hydrogen atom or an alkyl or aryl group of 1-20 carbon atoms and R¹ and R² may be identical or different and m and n each represents an integer of 1 or more or a derivative thereof. This composition may further contain a rubber-like polymer.

  一种在机械性能、加工性能、耐溶剂性和耐化学性之间具有良好平衡的树脂组合物，包括 (a) 聚苯醚树脂、 (b) 热塑性聚酯树脂，和 (c) 一种由式表示的化合物： (HO)mmR²(COOR²)n 其中 R¹ 代表 2-20 个碳原子的直链或支链饱和脂肪烃基，R² 代表氢原子或 1-20 个碳原子的烷基或芳基，R¹ 和 R² 可以相同或不同，m 和 n 各代表 1 个或更多的整数或其衍生物。 该组合物还可含有一种橡胶状聚合物。
• Thermoplastic resin composition and article comprising the same
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0456259A1

  公开（公告）日：1991-11-13

  A thermoplastic resin composition containing a polyamide resin composition (C) consisting of a polyamide resin (A) and another thermoplastic resin (B) and at least one modifier (D) is excellent in coatability, mechanical properties, linear expansion coefficient and appearance, can be molded into an article which comprises the polyamide resin (C), wherein the ratio of the percent occupied area of the polyamide resin on the surface of the article to the weight percentage of the polyamide in the polyamide resin composition (C) is not less than l.2, and/or the ratio of the percent concentration of the polyamide resin on the surface of the article determined on the basis of the nitrogen concentration on the surface of the article to the weight percentage of the polyamide in the polyamide resin composition (C) is not less than l,2, which article is suited for electric and electronic parts and automobile parts such as a bumper, fender and wheel cover.

  一种含有聚酰胺树脂组合物(C)的热塑性树脂组合物，该组合物由聚酰胺树脂(A)和另一种热塑性树脂(B)以及至少一种改性剂(D)组成，具有优异的涂覆性、机械性能、线膨胀系数和外观，可以模塑成包含聚酰胺树脂(C)的制品，其中制品表面聚酰胺树脂所占面积百分比与聚酰胺树脂组合物(C)中聚酰胺的重量百分比之比不小于 l.2、和/或根据物品表面氮浓度确定的物品表面聚酰胺树脂浓度百分比与聚酰胺树脂组合物(C)中聚酰胺重量百分比之比不小于l,2，该物品适用于电气和电子零件以及汽车零件，如保险杠、挡泥板和车轮罩。
• POLYURETHANE POLYUREA RESIN COMPOSITION, BINDER FOR PRINTING INKS, AND PRINTING INK
  申请人：DIC Corporation

  公开号：EP2749602A1

  公开（公告）日：2014-07-02

  Provided are a polyurethane polyurea resin composition that has high storage stability without a decrease in viscosity or turbidity over time and a printing ink that has high storage stability without a decrease in viscosity or coloration over time. The resin composition contains, as essential components, a polyurethane polyurea resin (A), a polyhydroxymonocarboxylic acid (B) having an acid value of 340 to 500 mg KOH/g and a hydroxyl value of 680 to 1,300 mg KOH/g, and at least one solvent selected from the group consisting of an ester solvent (C1) and an alcohol solvent (C2).

  本发明提供了一种聚氨酯聚脲树脂组合物，该组合物具有较高的储存稳定性，且不会随着时间的推移而降低粘度或浑浊度；还提供了一种印刷油墨，该油墨具有较高的储存稳定性，且不会随着时间的推移而降低粘度或着色。该树脂组合物的主要成分包括聚氨酯聚脲树脂（A）、酸值为 340 至 500 毫克 KOH/g 和羟值为 680 至 1 300 毫克 KOH/g 的聚羟基单羧酸（B），以及至少一种选自酯溶剂（C1）和醇溶剂（C2）的溶剂。
• Thermoplastic resin composition
  申请人：SUMITOMO CHEMICAL COMPANY LIMITED

  公开号：EP0391733B1

  公开（公告）日：1994-10-05
• Unusual macrocyclic pyrrolizidine alkaloids from A. Cunn and wall. (apocynaceae)
  作者：John A. Edgar、Nigel J. Eggers、Alan J. Jones、Graeme B. Russell

  DOI：10.1016/s0040-4039(00)92832-6

  日期：1980.1