2,3-二甲基-对苯二甲酸 | 13731-83-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,3-二甲基-对苯二甲酸
• 英文名称: 2,3-dimethyl-terephthalic acid
• 英文别名: 2,3-Dimethyl-terephthalsaeure；dimethyl terephthalic acid；dimethylterephthalic acid；2,3-dimethylterephthalic Acid
• CAS: 13731-83-4
• 化学式: C₁₀H₁₀O₄
• 分子量: 194.187
• InChiKey: RYRZSXJVEILFRR-UHFFFAOYSA-N

物化性质

• 熔点：
  274 °C(Solv: water (7732-18-5))
• 沸点：
  394.4±30.0 °C(Predicted)
• 密度：
  1.320±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 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：

  甲醇 、 2,3-二甲基-对苯二甲酸 在 硫酸 作用下， 生成 dimethyl 2,3-dimethylterephthalate
  参考文献：
  名称：

  Extensive sterile abscess in an invasive fibrous thyroiditis (Riedel’s thyroiditis) caused by an occlusive vasculitis

  摘要：

  Riedel's thyroiditis is a rare disease determined by an invasive fibrosclerotic transformation of the thyroid gland. It may be one manifestation of multifocal fibrosis with still unknown etiology. Because it mimics carcinoma, a biopsy must be performed to get the correct diagnosis. The condition is self-limiting when confined to the neck. Prognosis depends on the extent of extracervical fibrosclerosis. We present a patient with a huge cervical and mediastinal, unilateral thyroid mass expanding to the aortic curve, which led to tracheal deviation and compression with symptoms of strider and dyspnea. These symptoms continued under a course of high-dose steroids; thus an operation was necessary to relieve the airway obstruction and limit inflammation. Intraoperative and pathological findings showed an inflammatory infiltration of the adjacent neck muscles and a sterile abscess caused by an occlusive vasculitis. Therefore, hemithyroidectomy had to be performed instead of a local limited resection. (C)2001, Editrice Kurtis.

  DOI：

  10.1007/bf03343824
• 作为产物：
  描述：

  1,4-二溴-2,3-二甲基苯 在 吡啶 、 氢氧化钾 作用下， 生成 2,3-二甲基-对苯二甲酸
  参考文献：
  名称：

  Extensive sterile abscess in an invasive fibrous thyroiditis (Riedel’s thyroiditis) caused by an occlusive vasculitis

  摘要：

  Riedel's thyroiditis is a rare disease determined by an invasive fibrosclerotic transformation of the thyroid gland. It may be one manifestation of multifocal fibrosis with still unknown etiology. Because it mimics carcinoma, a biopsy must be performed to get the correct diagnosis. The condition is self-limiting when confined to the neck. Prognosis depends on the extent of extracervical fibrosclerosis. We present a patient with a huge cervical and mediastinal, unilateral thyroid mass expanding to the aortic curve, which led to tracheal deviation and compression with symptoms of strider and dyspnea. These symptoms continued under a course of high-dose steroids; thus an operation was necessary to relieve the airway obstruction and limit inflammation. Intraoperative and pathological findings showed an inflammatory infiltration of the adjacent neck muscles and a sterile abscess caused by an occlusive vasculitis. Therefore, hemithyroidectomy had to be performed instead of a local limited resection. (C)2001, Editrice Kurtis.

  DOI：

  10.1007/bf03343824

文献信息

• PROCESS FOR THE MANUFACTURE OF (PER) FLUOROPOLYETHERS WITH AROMATIC END GROUPS
  申请人：SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

  公开号：US20150321984A1

  公开（公告）日：2015-11-12

  The invention relates to a process which comprises the reaction of a (per)fluoropolyether peroxide with an optionally substituted aromatic or heteroaromatic compound. The process allows to obtain (per)fluoropolyether compounds having two chain ends, wherein one or both chain ends is a —CF 2 — group covalently bound to an optionally substituted aromatic or heteroaromatic group through a -carbon-carbon- bond. The invention further relates to the use of these compounds and to their derivatives as additives for perfluorinated oils and greases.

  这项发明涉及一种过程，其中包括将（过）氟聚醚过氧化物与一种可选择取代的芳香族或杂芳香族化合物反应。该过程允许获得具有两个链端的（过）氟聚醚化合物，其中一个或两个链端是通过碳-碳键共价结合到一个可选择取代的芳香族或杂芳香族基团的—CF2—基团。该发明还涉及将这些化合物及其衍生物用作全氟油和润滑脂的添加剂。
• PROCESSES FOR REDUCING ACID CONTENT OF A POLYALKYLENE TEREPHTHALATE AND USING SUCH IN THE PRODUCTION OF MACROCYCLIC POLYESTER OLIGOMER
  申请人：Phelps Peter D.

  公开号：US20090137749A1

  公开（公告）日：2009-05-28

  The invention relates to a method for producing low-acid polyalkylene terephthalate from which MPO can be advantageously manufactured. In certain embodiments, the acid content of commercially available polybutylene terephthalate (PBT) is reduced by adding a small amount of 1,4-butane diol (BDO) to a solution of the commercially available PBT in refluxing ortho-dichlorobenzene (oDCB) solvent.

  该发明涉及一种从中可以有利地制造MPO的低酸性聚烷基对苯二甲酸酯的生产方法。在某些实施例中，通过向商业可获得的聚丁烯对苯二甲酸酯（PBT）的溶液中加入少量1,4-丁二醇（BDO），可以减少其酸含量，该溶液在回流的邻二氯苯（oDCB）溶剂中。
• Laundry Care Composition Comprising Carboxylate Dye
  申请人：Milliken & Company

  公开号：US20150080561A1

  公开（公告）日：2015-03-19

  The present invention relates to laundry care compositions comprising carboxylate dyes. The laundry care compositions can be laundry detergent compositions, laundry additive compositions such as fabric enhancer compositions or bleach additive compositions. Preferably, the laundry care composition is a laundry detergent composition. The composition can be a solid, such as a powder, tablet or bar, or a liquid. The composition can be in the form of a unit dose, such as pouch. Suitable unit dose pouches include single compartment and multi-compartment pouches.

  本发明涉及包含羧酸盐染料的洗涤护理组合物。洗涤护理组合物可以是洗涤剂组合物，洗涤添加剂组合物，如织物增良剂组合物或漂白剂添加剂组合物。最好，洗涤护理组合物是洗涤剂组合物。该组合物可以是固体，如粉末、片剂或条形，也可以是液体。该组合物可以是单剂形式，如袋装。适用的单剂袋包括单隔室和多隔室袋。
• Antagonists for treatment of CD/11CD18 adhesion receptor mediated disorders
  申请人：Burdick J. Daniel

  公开号：US20050203135A1

  公开（公告）日：2005-09-15

  Compounds of the general structure D-L-B-(AA), for example (A), that are useful for treating Mac-1 or LFA-1-mediated disorders such as inflammatory disorders, allergies, and autoimmune diseases are provided.

  提供了一些具有一般结构D-L-B-(AA)的化合物，例如(A)，这些化合物对治疗Mac-1或LFA-1介导的疾病如炎症性疾病、过敏和自身免疫疾病是有用的。
• [EN] PROCESS FOR THE SYNTHESIS OF ARYLDIAZONIUM SALTS USING NITROGEN OXIDES IN OXYGEN-CONTAINING GAS STREAMS, ESPECIALLY FROM INDUSTRIAL WASTE GASES<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE SELS D'ARYLDIAZONIUM AU MOYEN D'OXYDES D'AZOTE DANS DES FLUX GAZEUX CONTENANT DE L'OXYGÈNE, PROVENANT EN PARTICULIER D'EFFLUENTS GAZEUX INDUSTRIELS
  申请人：FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG

  公开号：WO2017089470A1

  公开（公告）日：2017-06-01

  The present invention relates to a process for the synthesis of aryldiazonium salts using nitrogen oxides in oxygen-containing gas streams, especially from industrial waste gases.

  本发明涉及一种利用含氧气体流中的氮氧化物合成芳基重氮盐的方法，特别是从工业废气中进行合成。