α-licanic acid | 17699-20-6

• 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: α-licanic acid
• 英文别名: alpha-licanic acid；4-oxo-octadeca-9c,11t,13t-trienoic acid；4-Oxo-octadeca-9c,11t,13t-triensaeure；4-Oxo-octadeca-9c,11t,13t-triensaeure; α-Licansaeure；4-Oxo-9c.11t.13t-octadecatriensaeure；(9Z,11E,13E)-4-oxooctadeca-9,11,13-trienoic acid
• CAS: 17699-20-6
• 化学式: C₁₈H₂₈O₃
• 分子量: 292.419
• InChiKey: DTRGDWOPRCXRET-WPOADVJFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  21
• 可旋转键数：
  13
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  54.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  乙醇 、 α-licanic acid 、 alkaline earth salt of/the/ methylsulfuric acid 生成 4-氧代硬脂酸
  参考文献：
  名称：

  Brown; Farmer, Biochemical Journal, vol. 29, p. 635

  摘要：

  DOI：
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 氢氧化钾 作用下， 生成 α-licanic acid
  参考文献：
  名称：

  Brown; Farmer, Biochemical Journal, vol. 29, p. 635

  摘要：

  DOI：

文献信息

• Wood preservation agent
  申请人：Stichting Dienst Landbouwkundig Onderzoek

  公开号：EP2192119A1

  公开（公告）日：2010-06-02

  Disclosed is a method for the preservation of wood comprising the impregnation of wood, and heating, with a liquid based on a natural oil comprising a conjugated polyunsaturated fatty acid. Preferred are oils comprising a multiple conjugated polyunsaturated fatty acid, such as calendula oil or tung oil. The liquid can comprise the oil itself, in an unmodified form, or it can comprise a modification thereof in the form of a Diels-Alder adduct with a dienophile such as maleic anhydride.

  本发明公开了一种木材防腐方法，包括用含有共轭多不饱和脂肪酸的天然油为基础的液体对木材进行浸渍和加热。最好是含有多种共轭多不饱和脂肪酸的油，如金盏花油或桐油。液体可以包括未经改性的油本身，也可以包括其改性，改性形式为与马来酸酐等亲二烯化合物的 Diels-Alder 加合物。
• Resin, composition and use
  申请人：DSM IP ASSETS B.V.

  公开号：US10442955B2

  公开（公告）日：2019-10-15

  Low VOC, unsaturated alkyd resins are obtained by reacting (A) to (E): (A) optionally from 0 to 30% w/w naturally occurring Rosin, comprising from 40 to 80 w/w parts per hundred of Rosin of an unsaturated mono carboxylic acid with at least one C15-25cyclohydrocarbo moiety capable of a Diels Alder or Ene reaction (preferred monoacids being abietic acid, palustric acid, levopimaric acid, sandaracopimaric acid, and/or anhydrides thereof); (B) from 25 to 80% w/w of a linear C12-60hydrocarbo carboxylic acid with at least one (preferably at least two conjugated) C═C bonds (=unsaturated fatty acid); (C) optionally from 1 to 30% w/w of an ethylenically unsaturated C5-6hydrocarbo dicarboxylic acid and/or anhydride thereof, being reactive as a dienophile and/or enophile with A and/or B (preferred for C are itaconic acid, citraconic acid and/or anhydrides thereof); (D) from 1 to 40% w/w of at least one polyol; (E) optionally at least one monomer other than A to D—the total of A to E being 100%. There is a further optional step (II) where more or new (C) may be blended with the alkyd resin; the amount of C in blend being from 1 to 30 parts w/w of 100 parts of monomers (A) to (E)—and where (C) is at least used as a monomer and/or as a diluent in the blend and where alkyd resin (i) has acid value of <50 KOH/g of alkyd; (ii) Mn of >=1200 g/mol (iii) oil length <80; (iv) optionally biorenewable content >=50%.

  将(A)至(E)反应可获得低挥发性有机化合物的不饱和醇酸树脂：(A) 0% 至 30% w/w 的天然松香，其中包括 40% 至 80% w/w 的不饱和一元羧酸（松香中至少有一个 C15-25 环氢羧基能够发生 Diels Alder 或 Ene 反应）（优选的一元酸为阿比特酸、棕榈酸、左旋庚二酸、沙拉庚二酸和/或其酸酐）；(B) 25% 至 80% w/w 的线性 C12-60 羧酸，至少有一个（最好至少有两个共轭）C═C 键（=不饱和脂肪酸）；(C) 1-30%重量比的乙烯不饱和 C5-6 氢羧酸和/或其酸酐，作为亲二烯和/或亲 烯物与 A 和/或 B 反应（C 的优选物为衣康酸、柠康酸和/或其酸酐）； (D) 1-40%重量比的至少一种多元醇； (E) 除 A 至 D 之外的至少一种单体--A 至 E 的总和为 100%。还有一个可选步骤 (II)，在该步骤中，可将更多或新的 (C) 与醇酸树脂混合；C 在混合物中的用量为 100 份单体 (A) 至 (E) 中的 1 至 30 份 w/w，其中 (C) 至少用作混合物中的单体和/或稀释剂，醇酸树脂 (i) 酸值 =1200 g/mol (iii) 油长 =50%。
• Stabilized ester compositions and their use in film-forming compositions
  申请人：Bloom D. Paul

  公开号：US20050182168A1

  公开（公告）日：2005-08-18

  This invention relates to a composition comprising, consisting of or alternatively consisting essentially of a stabilized furfural or glycol ester of a vegetable oil fatty acid and an antioxidant such as butylated hydroxy toluene. This invention also relates to latex film-forming compositions containing stabilized furfural or glycol esters, such as a stabilized propylene glycol monoester (PGME) mixture. This invention is also directed to methods of stabilizing furfural or glycol esters of a vegetable fatty acid by contacting the esters with an antioxidant such as butylated hydroxy toluene. This invention also includes methods of preparing film-forming compositions comprising a stabilized furfural or glycol ester, such as the stabilized PGME mixture disclosed herein.

  本发明涉及一种组合物，该组合物包括或主要由植物油脂肪酸的稳定糠醛或乙二醇酯和抗氧化剂（如丁基羟基甲苯）组成。本发明还涉及含有稳定糠醛或乙二醇酯，如稳定丙二醇单酯（PGME）混合物的胶乳成膜组合物。本发明还涉及通过将植物脂肪酸的糠醛或乙二醇酯与抗氧化剂（如丁基羟基甲苯）接触来稳定糠醛或乙二醇酯的方法。本发明还包括制备成膜组合物的方法，该组合物包含稳定糠醛或乙二醇酯，例如本发明公开的稳定 PGME 混合物。
• Brown; Farmer, Biochemical Journal, vol. 29, p. 635
  作者：Brown、Farmer

  DOI：——

  日期：——
• Kappelmeier, 1935, vol. 42, p. 145
  作者：Kappelmeier

  DOI：——

  日期：——