3-甲基-2-环丁烯-1,2-二甲酸 | 4924-54-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 3-甲基-2-环丁烯-1,2-二甲酸
• 英文名称: 3-methyl-cyclobut-2-ene-1,2-dicarboxylic acid
• 英文别名: 3-Methyl-cyclobut-2-en-1,2-dicarbonsaeure；3-Methyl-cyclobuten-2-dicarbonsaeure-(1,2)；3-Methyl-2-cyclobutene-1,2-dicarboxylic acid；3-methylcyclobut-2-ene-1,2-dicarboxylic acid
• CAS: 4924-54-3
• 化学式: C₇H₈O₄
• 分子量: 156.138
• InChiKey: RCIQMZDMRSJPME-UHFFFAOYSA-N

物化性质

• 熔点：
  189-190.5 °C(Solv: water (7732-18-5))
• 沸点：
  381.5±42.0 °C(Predicted)
• 密度：
  1.490±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 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：

  3-甲基-2-环丁烯-1,2-二甲酸 在 sulfur tetrafluoride 作用下， 反应 4.0h， 生成 1-Methyl-2,3-bis(trifluoromethyl)cyclobutene
  参考文献：
  名称：

  The Chemistry of Sulfur Tetrafluoride. II. The Fluorination of Organic Carbonyl Compounds¹

  摘要：

  DOI：

  10.1021/ja01488a012
• 作为产物：
  描述：

  (+/-)-3-methylene-cyclobutane-1r,2c-dicarboxylic acid-anhydride 在 sodium hydroxide 作用下， 生成 3-甲基-2-环丁烯-1,2-二甲酸
  参考文献：
  名称：

  Chemistry of Cyclobutanes. II. Cyclobutenes from 3-Methylenecyclobutane-1,2-dicarboxylic Anhydride

  摘要：

  DOI：

  10.1021/ja01527a036

文献信息

• HEAT CARRIER COMPOSITION
  申请人：Shishiai-Kabushikigaisha

  公开号：EP1698678A1

  公开（公告）日：2006-09-06

  The present invention relates to a heat transfer medium composition which contains water, a glycol, alcohol and/or glycol ether as a main ingredient and a pH buffering agent. The composition provides improved and long lasting buffering in actual use to maintain the pH value of the medium within the appropriate range of pH 6 to pH 10. The pH buffering agent is prepared of an alicyclic compound where two members selected from among carboxyl and its salts are bonded to a ring-constituting carbon atom, or at least two members selected from the group are respectively bonded to as many neighboring carbon atoms. Alternatively, the pH buffering agent is prepared of a heterocyclic compound in which at least one ring-constituting carbon atom of the alicyclic compound is substituted by a nitrogen or oxygen atom, where two members selected from the group are bonded to a ring-constituting carbon atom, or at least two members selected from the group are respectively bonded to as many neighboring carbon atoms.

  本发明涉及一种导热介质组合物，其主要成分包括水、乙二醇、醇和/或乙二醇醚以及 pH 缓冲剂。在实际使用中，该组合物具有更好的持久缓冲作用，可将介质的 pH 值保持在 pH 6 至 pH 10 的适当范围内。pH 缓冲剂是由脂环族化合物制备的，其中从羧基及其盐类中选出的两个成员键合到一个构成环的碳原子上，或者从该基团中选出的至少两个成员分别键合到尽可能多的相邻碳原子上。或者，pH 缓冲剂由杂环化合物制备而成，其中脂环族化合物的至少一个构环碳原子被氮原子或氧原子取代，从该组中选出的两个成员与一个构环碳原子键合，或从该组中选出的至少两个成员分别与相邻的多个碳原子键合。
• Steinmetz,R. et al., Chemische Berichte, 1965, vol. 98, p. 3854 - 3873
  作者：Steinmetz,R. et al.

  DOI：——

  日期：——
• 3-hydrocarbo-2-cyclobutene-1, 2-dicarboxylic acids and their preparation
  申请人：DU PONT

  公开号：US02848478A1

  公开（公告）日：1958-08-19
• Heat transfer medium composition
  申请人：Egawa Hiroshi

  公开号：US20070007489A1

  公开（公告）日：2007-01-11

  The present invention relates to a heat transfer medium composition which contains water, a glycol, alcohol and/or glycol ether as a main ingredient and a pH buffering agent. The composition provides improved and long lasting buffering in actual use to maintain the pH value of the medium within the appropriate range of pH 6 to pH 10. The pH buffering agent is prepared of an alicyclic compound where two members selected from among carboxyl and its salts are bonded to a ring-constituting carbon atom, or at least two members selected from the group are respectively bonded to as many neighboring carbon atoms. Alternatively, the pH buffering agent is prepared of a heterocyclic compound in which at least one ring-constituting carbon atom of the alicyclic compound is substituted by a nitrogen or oxygen atom, where two members selected from the group are bonded to a ring-constituting carbon atom, or at least two members selected from the group are respectively bonded to as many neighboring carbon atoms.
• The Chemistry of Sulfur Tetrafluoride. II. The Fluorination of Organic Carbonyl Compounds¹
  作者：W. R. Hasek、W. C. Smith、V. A. Engelhardt

  DOI：10.1021/ja01488a012

  日期：1960.2