2-hydroxy-2-(hydroxymethyl)benzo-1,4-quinone

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-hydroxy-2-(hydroxymethyl)benzo-1,4-quinone
• 英文别名: 2-hydroxy-5-(hydroxymethyl)benzo-1,4-quinone
• 化学式: C₇H₆O₄
• 分子量: 154.122
• InChiKey: HYPSQYKHGOEYCE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  11.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  74.6
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  4-羟基-3-甲氧基苄醇 在 双氧水 、 甲基三氧化铼(VII) 、 溶剂黄146 作用下， 以 水 为溶剂， 反应 6.0h， 以4.9%的产率得到香草酸
  参考文献：
  名称：

  Methyltrioxorhenium: a new catalyst for the activation of hydrogen peroxide to the oxidation of lignin and lignin model compounds

  摘要：

  The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of environmental friendly pulping and bleaching industrial processes. Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of both phenolic and non-phenolic lignin model compounds by use of hydrogen peroxide as primary oxidant. Three different technical lignins, hydrolytic sugar cane lignin (SCL), red spruce kraft lignin (RSL) and a hardwood organo-solvent lignin (OSL), that are representative examples of widely diffused para-hydroxyphenyl-guaiacyl, guaiacyl and guaiacyl-syringyl lignins, were also extensively degraded under similar experimental conditions. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2005.01.049

文献信息

• Methyltrioxorhenium: a new catalyst for the activation of hydrogen peroxide to the oxidation of lignin and lignin model compounds
  作者：Claudia Crestini、Paola Pro、Veronica Neri、Raffaele Saladino

  DOI：10.1016/j.bmc.2005.01.049

  日期：2005.4

  The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of environmental friendly pulping and bleaching industrial processes. Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of both phenolic and non-phenolic lignin model compounds by use of hydrogen peroxide as primary oxidant. Three different technical lignins, hydrolytic sugar cane lignin (SCL), red spruce kraft lignin (RSL) and a hardwood organo-solvent lignin (OSL), that are representative examples of widely diffused para-hydroxyphenyl-guaiacyl, guaiacyl and guaiacyl-syringyl lignins, were also extensively degraded under similar experimental conditions. (c) 2005 Elsevier Ltd. All rights reserved.
• [EN] DYEING PROCESS USING A COMPOSITION COMPRISING A GLYCOSYL IRIDOID COMPOUND AND A NUCLEOPHILE OR AN AMINO OR THIO POLYMER, COMPOSITION AND DEVICES THEREFOR<br/>[FR] PROCÉDÉ DE COLORATION UTILISANT UNE COMPOSITION COMPRENANT UN COMPOSÉ IRIDOÏDE GLYCOSYLIQUE ET UN NUCLÉOPHILE OU UN POLYMÈRE AMINÉ OU THIOLÉ ET COMPOSITION ET DISPOSITIFS S'Y RAPPORTANT
  申请人：OREAL

  公开号：WO2013045701A2

  公开（公告）日：2013-04-04

  The present invention relates to a process of dyeing human keratin fibres by applying a composition, comprising, in a cosmetically acceptable medium: * a compound of the iridoid family of formula (I) below, or a plant extract comprising the same: formula (I) in which hydrogen, methyl, hydroxymethyl, aldehyde; -CO2R4 in which R4: hydrogen, C1-C2 alkyl; sugar; R2: a hydrogen atom, a hydroxyl radical, sugar radical; R3: hydrogen, hydroxyl, alkyloxy; R: sugar radical (aldose or derivative); integer ranging from 1 to 5; the compound(s) of formula (I) having undergone prior to or simultaneously with the dyeing process, a step consisting in replacing the radical R with a hydrogen atom; ** at least one particular nucleophilic compound or at least one amino or thio polymer, in an amino or thio polymer(s)/compound(s) of formulae (I) and/or (II) weight ratio of at least 0.01. The invention also relates to multi-compartment devices.
• [EN] DYE COMPOSITION COMPRISING A NON-GLYCOSYL IRIDOID COMPOUND AND A SPECIFIC NUCLEOPHILE OR AN AMINO OR THIO POLYMER, DYEING PROCESS, AND DEVICE THEREFOR<br/>[FR] COLORANT COMPRENANT UN COMPOSÉ IRIDOÏDE NON GLYCOSYLE ET UN NUCLÉOPHILE OU UN AMINO OU THIO POLYMÈRE, PROCÉDÉ DE COLORATION ET DISPOSITIF AFFÉRENT
  申请人：OREAL

  公开号：WO2013045702A2

  公开（公告）日：2013-04-04

  The present invention relates to a composition for dyeing human keratin fibres, comprising, in a cosmetically acceptable medium: * a compound of the formula (I) and/or of the formula (II) below, or a plant extract comprising the same: with R1 : hydrogen, (hydroxy)methyl, aldehyde; -CO2R4 and R4: hydrogen, alkyl; -CH2- glucose; R2: hydrogen, hydroxyl, glucose; R3: hydrogen, hydroxyl, alkyloxy; n ranging from 1 to 5; R5: -C02R'6 and R'6: hydrogen, alkyl, cation; ** at least one particular nucleophilic compound or at least one amino or thio polymer, in an amino or thio polymer(s)/compound(s) of formulae (I) and/or (II) weight ratio of at least 0.01, *** one or more particular organic or mineral salts. The invention also relates to a process using such a composition, and also to multi-compartment device.
• [EN] DYEING METHOD USING A HAIR-DYEING PRECURSOR OBTAINED FROM IRIDOIDS, COMPOSITION, PRECURSOR AND DEVICE INCLUDING SAME<br/>[FR] PROCEDE DE COLORATION UTILISANT UN PRECURSEUR DE COLORATION CAPILLAIRE ISSU D'IRIDOIDE, COMPOSITION, PRECURSEUR ET DISPOSITIF LE COMPRENANT
  申请人：OREAL

  公开号：WO2014154957A1

  公开（公告）日：2014-10-02

  La présente invention a pour objet un procédé de coloration mettant en oeuvre une composition comprenant au moins un précurseur de coloration issu d'iridoïde(s) non glycosylé(s) de formule (I) et au moins un agent oxydant chimique, une composition comprenant au moins un précurseur de coloration, un dispositif comprenant lesdits précurseurs, les précurseurs de colorations et un procédé de préparation desdits précurseurs. La composition et le procédé de coloration selon l'invention permettent d'obtenir des colorations variées, ne dégradant pas les cheveux, tenaces notamment vis-à-vis des shampooings.
• Immobilized methyltrioxo rhenium (MTO)/H2O2 systems for the oxidation of lignin and lignin model compounds
  作者：Claudia Crestini、Maria Chiara Caponi、Dimitris S. Argyropoulos、Raffaele Saladino

  DOI：10.1016/j.bmc.2006.03.046

  日期：2006.8

  A convenient and efficient application of heterogeneous methylrhenium trioxide (MTO) systems for the selective oxidation of lignin model compounds and lignins is reported. Environmental friendly and low-cost H2O2 was used as the oxygen atom donor. Overall, the data presented and discussed in this paper point toward the conclusion that the immobilized heterogeneous catalytic systems based on H2O2/and MTO catalysts are able to extensively oxidize both phenolic and non-phenolic, monomeric, and dimeric, lignin model compounds. Condensed diphenylmethane models were found also extensively oxidized. Technical lignins, such as hydrolytic sugar cane lignin (SCL) and red spruce kraft lignin (RSL), displayed oxidative activity with immobilized MTO catalytic systems. After oxidation, these lignins displayed the formation of more soluble lignin fragments with a high degree of degradation as indicated by the lower contents of aliphatic and condensed OH groups, and the higher amounts of carboxylic acid moieties. Our data indicate that immobilized MTO catalytic systems are significant potential candidates for the development of alternative totally chlorine-free delignification processes and environmentally sustainable lignin selective modification reactions. (c) 2006 Elsevier Ltd. All rights reserved.