(2Z)-2-Butylidenebutanedioic acid | 3283-25-8

• 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: (2Z)-2-Butylidenebutanedioic acid
• CAS: 3283-25-8
• 化学式: C₈H₁₂O₄
• 分子量: 172.18
• InChiKey: ZZXACWDXWFBRCH-XQRVVYSFSA-N

物化性质

• 熔点：
  160-162 °C
• 沸点：
  382.6±25.0 °C(Predicted)
• 密度：
  1.201±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 海关编码：
  2917190090

文献信息

• [EN] STERICALLY HINDERED AMINE STABILIZERS<br/>[FR] STABILISANTS D'AMINES À ENCOMBREMENT STÉRIQUE
  申请人：BASF SE

  公开号：WO2010142572A1

  公开（公告）日：2010-12-16

  The instant invention pertains to hindered amine compounds having at least two nitrogen atoms with different basicity. One part is substituted on the N-atom by alkoxy moieties and the other part is substituted on the N-atom by a hydroxy-alkyl moiety. These materials are particularly effective in stabilizing polymers, especially thermoplastic polyolefins, against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are also particularly effective in stabilizing acid catalyzed and ambient cured coatings systems.

  这项瞬时发明涉及具有至少两个氮原子且碱度不同的受阻胺化合物。其中一部分在N原子上被烷氧基团取代，另一部分在N原子上被一个羟基-烷基基团取代。这些材料在稳定聚合物方面特别有效，尤其是热塑性聚烯烃，可以抵御氧化、热和光辐射的有害影响。这些化合物在稳定酸催化和环境固化的涂层系统方面也特别有效。
• [EN] NOVEL LIGHT STABILIZERS<br/>[FR] NOUVEAUX STABILISANTS LUMIÈRE
  申请人：BASF SE

  公开号：WO2015004580A1

  公开（公告）日：2015-01-15

  The present invention relates to symmetric diesters of hydroxyalkyl-4-hydroxy- tetraalkylpiperidine compounds and their use as light stabilizers. They are compatible with and soluble in coating formulations of different polarity.

  本发明涉及羟基烷基-4-羟基-四烷基哌啶化合物的对称二酯及其作为光稳定剂的用途。它们与不同极性的涂料配方相容且可溶。
• [EN] METHOD FOR THE PRODUCTION OF METHYLSUCCINIC ACID AND THE ANHYDRIDE THEREOF FROM CITRIC ACID<br/>[FR] PROCÉDÉ DE PRODUCTION D'ACIDE MÉTHYLSUCCINIQUE ET DE SON ANHYDRIDE À PARTIR D'ACIDE CITRIQUE
  申请人：UNIV LEUVEN KATH

  公开号：WO2018065475A1

  公开（公告）日：2018-04-12

  A process for the preparation of methylsuccinic acid in any form, including its salts, its mono- and diester derivatives and the anhydride thereof, which comprises reacting citric acid or a derivative thereof in decarboxylation conditions, said process comprising (i) reacting citric acid or mono- and diester derivatives thereof in a non- aqueous solvent, specifically excluding alcohols, on a metallic catalyst at a temperature between 50 to 400°C and under a partial hydrogen pressure from 0.1 to 50 bar or (ii) reacting citric acid or any salt thereof or mono-, di- and triester derivatives thereof on a metallic catalyst in solvents comprising at least 5% water, at a temperature of from 50 to 400°C under a hydrogen partial pressure from 0.1 to 400 bar

  一种制备甲基琥珀酸及其盐、单酯和二酯衍生物以及其酐的方法，包括在脱羧条件下反应柠檬酸或其衍生物，所述方法包括(i) 在非水溶剂中在金属催化剂上以50至400°C的温度和0.1至50巴的部分氢压力下反应柠檬酸或其单酯和二酯衍生物，特别排除醇；或(ii) 在含水量至少为5%的溶剂中，在50至400°C的温度下，在0.1至400巴的氢分压下反应柠檬酸或其任何盐或其单酯、二酯和三酯衍生物上。
• [EN] DEGRADATION ACCELERATOR FOR POLYMERS AND POLYMER ARTICLE COMPRISING IT<br/>[FR] ACCÉLÉRATEUR DE DÉGRADATION POUR DES POLYMÈRES ET ARTICLE POLYMÈRE LE COMPRENANT
  申请人：CIBA HOLDING INC

  公开号：WO2009016083A1

  公开（公告）日：2009-02-05

  Disclosed are a method for improving the degradation of natural and/or synthetic polymers or a polymer article made from such polymer(s) by light and/or heat and/or humidity, comprising the incorporation of a compound of formula (I) into said natural and/or synthetic polymers: Formula (I); wherein m is 1 or 2, n is 1 to 100, X is selected from certain benzophenone-derived moieties and R, R1; R2 are each selected from list of certain residues; novel compounds of said formula (I) and polymeric articles of improved degradability in the presence of light and/or heat and/or humidity being made of a composition comprising: A) a natural and/or a synthetic polymer and B) a degradation accelerator being a compound of said formula (I).

  公开了一种改善天然和/或合成聚合物或由这些聚合物制成的聚合物制品在光线和/或热量和/或湿度作用下降解的方法，包括将式(I)的化合物并入所述天然和/或合成聚合物中：式(I)；其中m为1或2，n为1至100，X从特定苯基酮衍生物中选择，R，R1，R2分别从特定残基列表中选择；所述式(I)的新化合物和在存在光线和/或热量和/或湿度时具有改善降解性能的聚合物制品由包括以下成分的组合物制成：A) 天然和/或合成聚合物和B) 一种降解加速剂，该加速剂是所述式(I)的化合物。
• Additive Mixtures for Agricultural Articles
  申请人：Gardi Stefano

  公开号：US20090076206A1

  公开（公告）日：2009-03-19

  An agricultural article made of a composition containing (a) an organic polymer, and (b) an additive mixture comprising the components (b-0) a photosensitizer, (b-I) an organic salt of a transition metal, and optionally (b-II) an inorganic peroxide or inorganic superoxide.

  一篇农业文章，由含有（a）有机聚合物和（b）添加剂混合物的组成物制成，包括组分（b-0）光敏剂，（b-I）过渡金属的有机盐，以及可选的（b-II）无机过氧化物或无机超氧化物。