3-methoxy-5-propyl-pyrocatechol

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 3-methoxy-5-propyl-pyrocatechol
• 英文别名: 3.4-Dioxy-5-methoxy-1-propyl-benzol；3-Methoxy-5-propyl-brenzcatechin；3-Methoxy-5-propylbenzene-1,2-diol
• 化学式: C₁₀H₁₄O₃
• 分子量: 182.219
• InChiKey: NCGFIPKCCQPPIE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  49.7
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-methoxy-5-propyl-pyrocatechol 在 盐酸 作用下， 生成 5-propylpyrogallol
  参考文献：
  名称：

  Pastrovich, Monatshefte fur Chemie, 1883, vol. 4, p. 190

  摘要：

  DOI：
• 作为产物：
  描述：

  4-丙基-2,6-二甲氧基苯酚 在 盐酸 作用下， 以 水 为溶剂， 250.0 ℃ 、5.0 MPa 条件下， 反应 3.0h， 以72%的产率得到5-propylpyrogallol
  参考文献：
  名称：

  在水中用HCl有效地使芳香族甲基醚脱甲基

  摘要：

  芳族甲基醚与无机酸（HCl或H 2 SO 4）作为催化剂在高温加压水中进行绿色，高效且廉价的脱甲基反应，可高产率提供相应的芳族醇（酚，邻苯二酚，邻苯三酚）。考虑到4-丙基邻苯二酚反应产物的各种应用，选择4-丙基愈创木酚作为模型。该脱甲基反应可以容易地扩大规模，并且来自木材和丁香油的可生物再生的4-丙基愈创木酚也可以用作原料。所开发方法的绿色度与通过进行定量和定性的Green Metrics分析，评估了最先进的脱甲基反应。该方法在多种含（生物可再生）底物的芳族甲基醚上具有多功能性，可产生高达99％的相应芳族醇，在大多数情况下，仅需简单提取即可进行后处理。

  DOI：

  10.1039/d0gc04268d

文献信息

• [EN] METHOD FOR THE DEACYLATION AND/OR DEALKYLATION OF COMPOUNDS<br/>[FR] PROCÉDÉ DE DÉSACYLATION ET/OU DE DÉSALKYLATION DE COMPOSÉS
  申请人：UNIV ANTWERPEN

  公开号：WO2019025535A1

  公开（公告）日：2019-02-07

  The present invention in general relates to a method for the deacylation and/or dealkylation (both O-dealkylation as well as C-dealkylation) of compounds, more specifically of aromatic compounds. The method is characterized by contacting the compound with an acid-containing aqueous reaction mixture using high temperature and high pressure conditions. The invention also provides a method for preparing a compound suitable for further deacylation using the method of the invention.

  本发明总体上涉及一种去酰化及/或脱烷基化（包括O-脱烷基化和C-脱烷基化）化合物的方法，更具体地说是芳香族化合物的方法。该方法的特点是在高温高压条件下，将化合物与含有酸的水性反应混合物接触。发明还提供了一种使用本发明方法进一步去酰化的合适化合物的制备方法。
• [EN] PRODUCTION OF HIGHLY PURE META,META-COUPLED BIS(4-ALKYLPHENOL) DERIVATIVES AND USES THEREOF<br/>[FR] PRODUCTION DE DÉRIVÉS DE BIS(4-ALKYLPHÉNOL) MÉTA,MÉTA-COUPLÉS TRÈS PURS ET LEURS UTILISATIONS
  申请人：UNIV LEUVEN KATH

  公开号：WO2018134427A1

  公开（公告）日：2018-07-26

  In general the present invention concerns a method for production of highly pure m,m'- coupled bis(4-alkylphenol) derivatives from particular lignin-derived 4-alkylphenol derivatives. More specifically this invention relates to a process for the selective purification of m,m'- coupled bis(4-alkylphenol) derivatives by selective crystallization in the presence of residual substrate and isomeric and/or oligomeric by-products/impurities. This new class of bis(4-alkylphenol)s are valuable precursors for renewable thermoplastics, (high temperature) resins/thermosets, bio-derived C15-C19 fuel additives, antioxidants, UV-stabilizers, plasticizers, soluble n-type perylene copolymers and/or positive working photoresists.

  总的来说，本发明涉及一种从特定木质素衍生的4-烷基酚衍生物生产高纯度m，m'-偶联的双(4-烷基酚)衍生物的方法。更具体地说，本发明涉及一种通过在残留底物和同分异构体和/或寡聚体副产物/杂质存在下进行选择性结晶实现对m，m'-偶联的双(4-烷基酚)衍生物的选择性纯化的方法。这种新类别的双(4-烷基酚)是可再生热塑性塑料、(高温)树脂/热固性塑料、生物衍生的C15-C19燃料添加剂、抗氧化剂、紫外线稳定剂、增塑剂、可溶性n-型苝共聚物和/或正向光刻胶的有价值前体。
• LEATHER OR LEATHER ARTICLE AND METHOD FOR PRODUCING SAME, HEXAVALENT CHROMIUM TREATMENT AGENT, METHOD FOR TREATING HEXAVALENT CHROMIUM IN CRUDE LEATHER OR CRUDE LEATHER ARTICLE
  申请人：Citizen Watch Co., Ltd.

  公开号：EP3178947A1

  公开（公告）日：2017-06-14

  An object of the invention is to provide a heat-resistant hexavalent chromium removal agent, which is capable of remaining in a leather or leather article for a long period of time and stably detoxifying hexavalent chromium over the long term even when a leather or leather article contains hexavalent chromium, and a leather or leather article, in which the hexavalent chromium content is less than 3 ppm. The leather or leather article of the present invention contains at least: an organic compound (A) having a structure shown in chemical formula (1) and hydroxyphenyl but not aldehyde and carboxyl, which organic compound has a property to reduce hexavalent chromium to trivalent chromium; and trivalent chromium, and the hexavalent chromium content determined in accordance with ISO 17075: 2008-02 is less than 3 ppm.

  本发明的目的是提供一种耐热的六价铬去除剂，即使皮革或皮革制品中含有六价铬，该去除剂也能在皮革或皮革制品中长期存留，并长期稳定地对六价铬进行解毒，同时提供一种六价铬含量低于 3ppm 的皮革或皮革制品。本发明的皮革或皮革制品至少含有：一种有机化合物（A），其结构如化学式（1）所示，具有羟基苯基，但不具有醛和羧基，该有机化合物具有将六价铬还原为三价铬的特性；以及三价铬，且根据 ISO 17075: 2008-02 测定的六价铬含量低于 3 ppm。
• Leather or leather article and method for producing same, hexavalent chromium treatment agent, method for treating hexavalent chromium in crude leather or crude leather article
  申请人：CITIZEN WATCH CO., LTD.

  公开号：US10358686B2

  公开（公告）日：2019-07-23

  An object of the invention is to provide a heat-resistant hexavalent chromium removal agent, which is capable of remaining in a leather or leather article for a long period of time and stably detoxifying hexavalent chromium over the long term even when a leather or leather article contains hexavalent chromium, and a leather or leather article, in which the hexavalent chromium content is less than 3 ppm. The leather or leather article of the present invention contains at least: an organic compound (A) having a structure shown in chemical formula (1) and hydroxyphenyl but not aldehyde and carboxyl, which organic compound has a property to reduce hexavalent chromium to trivalent chromium; and trivalent chromium, and the hexavalent chromium content determined in accordance with ISO 17075: 2008-02 is less than 3 ppm.

  本发明的目的是提供一种耐热的六价铬去除剂，即使皮革或皮革制品中含有六价铬，该去除剂也能在皮革或皮革制品中长期存留，并长期稳定地对六价铬进行解毒，同时提供一种六价铬含量低于 3ppm 的皮革或皮革制品。本发明的皮革或皮革制品至少含有：一种有机化合物（A），其结构如化学式（1）所示，具有羟基苯基，但不具有醛和羧基，该有机化合物具有将六价铬还原为三价铬的特性；以及三价铬，且根据 ISO 17075: 2008-02 测定的六价铬含量低于 3 ppm。
• Compounds and compositions for delivery of nutrients and micronutrients to plants
  申请人：Spero Energy, Inc.

  公开号：US10793482B2

  公开（公告）日：2020-10-06

  Compounds, including chelated compounds, which may be used for the delivery of nutrients and micronutrients to plants are provided. In addition, processes for preparing such compounds, compositions comprising such compounds, and methods for delivering nutrients and micronutrients to plants with such compounds are provided.

  本发明提供了可用于向植物输送养分和微量营养元素的化合物，包括螯合化合物。 此外，还提供了制备此类化合物的工艺、包含此类化合物的组合物，以及用此类化合物向植物输送养分和微量营养元素的方法。