leiocarpic acid | 118303-91-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: leiocarpic acid
• 英文别名: 3,6-Dihydroxy-2-methoxybenzoic acid；Leiocarpsaeure
• CAS: 118303-91-6
• 化学式: C₈H₈O₅
• mdl: MFCD08274700
• 分子量: 184.149
• InChiKey: LEYBYZMFOFATIO-UHFFFAOYSA-N

物化性质

• 沸点：
  413.5±45.0 °C(Predicted)
• 密度：
  1.499±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.125
• 拓扑面积：
  87
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  leiocarpic acid 在 sodium hydroxide 、 氯化亚砜 、 N,N-二甲基甲酰胺 作用下， 以 1,4-二氧六环 、 乙醇 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 6.5h， 生成
  参考文献：
  名称：

  Pivaloyl-directed regioselective syntheses of 2,3,6-trioxygenated benzamides: phenolic metabolites of remoxipride

  摘要：

  The regioselective syntheses of (S)-5-bromo-2,6-dimethoxy-N-[(1-ethyl-2-pyrrolidinyl)methyl]-3-hydroxybenzamide (2) and (S)-5-bromo-N-[(1-ethyl-2-pyrrolidinyl)methyl]-3-hydroxy-6-methoxy-salicylamide (3) from 2,6-dimethoxybenzoic acid and 4-methoxycatechol are described. The latter compound was protected and ortho-lithiated to introduce the carboxyl function in a regioselective manner. Regiocontrol in bromination and demethylation was achieved by introduction of a bulky pivaloyl group. This strategy also enabled the use of a common intermediate as an alternative synthesis of the catechol 3.

  DOI：

  10.1021/jo00065a015
• 作为产物：
  描述：

  2-甲氧基对苯二酚 在 三氯乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 96.0h， 生成 leiocarpic acid
  参考文献：
  名称：

  Pivaloyl-directed regioselective syntheses of 2,3,6-trioxygenated benzamides: phenolic metabolites of remoxipride

  摘要：

  The regioselective syntheses of (S)-5-bromo-2,6-dimethoxy-N-[(1-ethyl-2-pyrrolidinyl)methyl]-3-hydroxybenzamide (2) and (S)-5-bromo-N-[(1-ethyl-2-pyrrolidinyl)methyl]-3-hydroxy-6-methoxy-salicylamide (3) from 2,6-dimethoxybenzoic acid and 4-methoxycatechol are described. The latter compound was protected and ortho-lithiated to introduce the carboxyl function in a regioselective manner. Regiocontrol in bromination and demethylation was achieved by introduction of a bulky pivaloyl group. This strategy also enabled the use of a common intermediate as an alternative synthesis of the catechol 3.

  DOI：

  10.1021/jo00065a015

文献信息

• CHARGE CONTROL RESIN AND MANUFACTURING METHOD OF THE SAME
  申请人：YASUMATSU Masashi

  公开号：US20150025213A1

  公开（公告）日：2015-01-22

  Here is provided a charge control resin which is prompt in charge rising up, excellent in electrostatic charging propensity and easy in manufacturing. This charge control resin contains a polymer as an active ingredient having a constituent unit represented by following Formula (1) in the Formula (1), R 1 is independent of one another, and is a hydrogen atom, a hydroxyl group, a halogen atom, a carboxy-containing group, a straight-chained or branched alkyl group having 1-18 carbon atoms, or a straight-chained or branched alkoxy group having 1-18 carbon atoms; R 2 is a hydrogen atom, a hydroxyl group, a halogen atom, a carboxy-containing group, a straight-chained or branched alkyl group having 1-18 carbon atoms, or a straight-chained or branched alkoxy group having 1-18 carbon atoms; g is a number of 1-3; h is a number of 1-3; and M is a hydrogen atom, an alkali metal, a straight-chained or branched alkyl group having 1-18 carbon atoms, an ammonium radical or a mixture of any of these.

  这里提供了一种电荷控制树脂，它在电荷上升方面快速，具有优异的静电充电倾向并且易于制造。该电荷控制树脂包含一种聚合物作为活性成分，该聚合物具有由以下公式（1）表示的组成单元。在公式（1）中，R1互不相同，可以是氢原子、羟基、卤素原子、含羧基的基团、直链或支链烷基（碳数为1-18）或直链或支链烷氧基（碳数为1-18）；R2可以是氢原子、羟基、卤素原子、含羧基的基团、直链或支链烷基（碳数为1-18）或直链或支链烷氧基（碳数为1-18）；g为1-3的数字；h为1-3的数字；M可以是氢原子、碱金属、直链或支链烷基（碳数为1-18）、铵基或任何这些的混合物。
• PIGMENT DISPERSION AND TONER
  申请人：CANON KABUSHIKI KAISHA

  公开号：US20160246200A1

  公开（公告）日：2016-08-25

  A pigment dispersion containing a pigment, a non-water-soluble solvent, a compound in which an specific azo skeleton structure is bonded to a specific polymer having a monomer unit given, and a polymer compound having a monomer unit that contains a structure selected from the partial structures given by the specific formulas (3) and (4).

  一种颜料分散液，包含颜料、非水溶性溶剂、一种特定的聚合物，其中该聚合物具有给定的单体单元，以及一种聚合物化合物，该聚合物化合物具有包含从特定公式（3）和（4）给定的部分结构中选择的结构的单体单元。
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  公开号：US8883946B2

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  申请人：——

  公开号：US9079989B2

  公开（公告）日：2015-07-14
• US9618867B2
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  公开号：US9618867B2

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