2,3,4-三甲基苯酚 | 526-85-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 2,3,4-三甲基苯酚
• 中文别名: 2,3,4-三甲苯酚；2,3,4-三甲酚
• 英文名称: 2,3,4-trimethylphenol
• 英文别名: trimethyl-phenol；2,3,4-Trimethyl-phenol；4-Hydroxy-1.2.3-trimethyl-benzol；vic.-Hemellitenol；4-Oxy-hemellitol；tri-methylphenol
• CAS: 526-85-2；26998-80-1
• 化学式: C₉H₁₂O
• 分子量: 136.194
• InChiKey: XRUGBBIQLIVCSI-UHFFFAOYSA-N

物化性质

• 熔点：
  66-73 °C
• 保留指数：
  1261.4

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 海关编码：
  2907199090

反应信息

• 作为反应物：
  描述：

  2,3,4-三甲基苯酚 在 三氯化铝 作用下， 以 二硫化碳 为溶剂， 生成
  参考文献：
  名称：

  Topp,A. et al., Justus Liebigs Annalen der Chemie, 1974, p. 1167 - 1182

  摘要：

  DOI：
• 作为产物：
  描述：

  2,3,4-trimethyl-benzenesulfonic acid 生成 2,3,4-三甲基苯酚
  参考文献：
  名称：

  Jacobsen, Chemische Berichte, 1886, vol. 19, p. 2518

  摘要：

  DOI：

文献信息

• EUROPIUM COMPLEX
  申请人：TOSOH CORPORATION

  公开号：US20200354389A1

  公开（公告）日：2020-11-12

  To provide europium complexes having high photostability. A europium complex expressed with the following formula (A): wherein, R A and R B are independently a cyclic alkyl group with 3 to 10 carbons, respectively, and R C is a cyclic alkyl group with 3 to 10 carbons or a phenyl group expressed with the following formula (B): (wherein, X A , X B , A C , X D and X E independently represent a hydrogen atom; a fluorine atom; an alkyl group with 1 to 3 carbon(s); an alkyloxy group with 1 to 3 carbon(s); an aryloxy group with 6 to 10 carbons; a fluoroalkyl group with 1 to 3 carbon(s); a fluoroalkyloxy group with 1 to 3 carbon(s); or a phenyl group that may be substituted with a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a fluorophenyl group, a hydroxyl group or a cyano group, respectively); R A is a cyclic alkyl group with 3 to 10 carbons; R B and R C are a phenyl group expressed with the formula (B), provided, however, that a case where R A a cyclohexyl group, and, R B and R C are a phenyl group is excluded; or R A , R B and R C independently represent an ortho-substituted phenyl group expressed with the following formula (Ba): (wherein, X E represents a hydrogen atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a naphthyl group that may be substituted with a fluorine atom, a pyridyl group that may be substituted with a fluorine atom, or a phenyl group that is expressed with a formula (C): [wherein, Z A , Z C and Z E independently represent a hydrogen atom, a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a phenyl group that may be substituted with a fluorine atom, a hydroxyl group or a cyano group; Z B and Z D independently represent a hydrogen atom or a fluorine atom, respectively], provided, however, that a case where R A , R B and R C are all a phenyl group is excluded), respectively; R D represents a hydrogen atom, a deuterium atom or a fluorine atom; W A and W B independently represent an alkyl group with 1 to 6 carbon(s), a fluoroalkyl group with 1 to 6 carbon(s), a phenyl group, a 2-thienyl group or a 3-thienyl group; and ‘n’ represents an integer of 1 to 3}.

  提供具有高光稳定性的铕配合物。 以下是用以下公式（A）表示的铕配合物： 其中，R A 和R B 分别独立地是具有3至10个碳原子的环烷基基团，而R C 是具有3至10个碳原子的环烷基基团或用以下公式（B）表示的苯基团： （其中，X A 、X B 、A C 、X D 和X E 独立地代表氢原子；氟原子；具有1至3个碳原子的烷基基团；具有1至3个碳原子的烷氧基团；具有6至10个碳原子的芳基氧基团；具有1至3个碳原子的氟烷基基团；具有1至3个碳原子的氟烷氧基团；或者可能被氟原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、氟苯基团、羟基或氰基取代的苯基团，分别）； R A 是具有3至10个碳原子的环烷基基团； R B 和R C 是用公式（B）表示的苯基团，但是，排除R A 为环己基团，且R B 和R C 为苯基团的情况；或者 R A ，R B 和R C 独立地表示用以下公式（Ba）表示的邻位取代的苯基团： （其中，X E 代表氢原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、可能被氟原子取代的萘基团、可能被氟原子取代的吡啶基团，或者用以下公式（C）表示的苯基团： [其中，Z A 、Z C 和Z E 独立地代表氢原子、氟原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、可能被氟原子取代的苯基团、羟基或氰基；Z B 和Z D 独立地代表氢原子或氟原子，但排除R A ，R B 和R C 都是苯基团的情况），分别；R D 代表氢原子、氘原子或氟原子；W A 和W B 独立地表示具有1至6个碳原子的烷基基团、具有1至6个碳原子的氟烷基基团、苯基、2-噻吩基团或3-噻吩基团；‘n’表示1至3的整数。
• Method for Preparing Aromatic Carbonate
  申请人：SAMSUNG SDI CO., LTD.

  公开号：US20160237019A1

  公开（公告）日：2016-08-18

  A method for preparing an aromatic carbonate, of the present invention, comprises the steps of: (A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound and carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture and an aromatic alcohol. The method for preparing an aromatic carbonate allows an aromatic carbonate to be economically prepared in a high yield by using carbon dioxide as a carbonyl supply source.

  制备芳香碳酸酯的方法，包括以下步骤：(A) 制备含有脂肪族碳酸酯的反应混合物，通过使有机金属化合物和二氧化碳反应；以及 (B) 通过使该反应混合物和芳香醇反应来制备芳香碳酸酯。所述制备芳香碳酸酯的方法允许使用二氧化碳作为羰基供体，以高收率经济地制备芳香碳酸酯。
• COMPOUND, RESIN, MATERIAL FOR FORMING UNDERLAYER FILM FOR LITHOGRAPHY, UNDERLAYER FILM FOR LITHOGRAPHY, PATTERN FORMING METHOD, AND METHOD FOR PURIFYING THE COMPOUND OR RESIN
  申请人：Mitsubishi Gas Chemical Company, Inc.

  公开号：US20170073288A1

  公开（公告）日：2017-03-16

  The compound according to the present invention is represented by a specific formula. The compound according to the present invention has a structure according to the specific formula, and therefore can be applied to a wet process and is excellent in heat resistance and etching resistance. In addition, the compound according to the present invention has such a specific structure, and therefore has a high heat resistance, a relatively high carbon concentration, a relatively low oxygen concentration and also a high solvent solubility. Therefore, the compound according to the present invention can be used to form an underlayer film whose degradation is suppressed at high-temperature baking and which is also excellent in etching resistance to oxygen plasma etching or the like. Furthermore, the compound is also excellent in adhesiveness with a resist layer and therefore can form an excellent resist pattern.

  根据本发明，该化合物由特定的公式表示。根据本发明，该化合物具有特定公式的结构，因此可应用于湿法工艺，具有优异的耐热性和耐蚀性。此外，根据本发明，该化合物具有特定结构，因此具有高耐热性、相对较高的碳浓度、相对较低的氧浓度以及高溶剂溶解性。因此，根据本发明的化合物可用于形成在高温烘烤时降解受抑制且在氧等离子体蚀刻中具有优异耐蚀性的底层膜。此外，该化合物在与光阻层的粘附性方面也表现出色，因此可形成优异的光阻图案。
• BITTER TASTE MODIFIERS INCLUDING SUBSTITUTED 1-BENZYL-3-(1-(ISOXAZOL-4-YLMETHYL)-1H-PYRAZOL-4-YL)IMIDAZOLIDINE-2,4-DIONES AND COMPOSITIONS THEREOF
  申请人：SENOMYX, INC.

  公开号：US20160376263A1

  公开（公告）日：2016-12-29

  The present invention includes compounds and compositions known to modify the perception of bitter taste, and combinations of said compositions and compounds with additional compositions, compounds, and products. Exemplary compositions comprise one or more of the following: cooling agents; inactive drug ingredients; active pharmaceutical ingredients; food additives or foodstuffs; flavorants, or flavor enhancers; food or beverage products; bitter compounds; sweeteners; bitterants; sour flavorants; salty flavorants; umami flavorants; plant or animal products; compounds known to be used in pet care products; compounds known to be used in personal care products; compounds known to be used in home products; pharmaceutical preparations; topical preparations; cannabis-derived or cannabis-related products; compounds known to be used in oral care products; beverages; scents, perfumes, or odorants; compounds known to be used in consumer products; silicone compounds; abrasives; surfactants; warming agents; smoking articles; fats, oils, or emulsions; and/or probiotic bacteria or supplements.

  本发明涵盖已知用于改变苦味感知的化合物和组合物，以及所述组合物和化合物与额外的组合物、化合物和产品的组合。示例组合物包括以下一种或多种：冷却剂；无活性药物成分；活性药用成分；食品添加剂或食品；调味剂或调味增强剂；食品或饮料产品；苦味化合物；甜味剂；苦味剂；酸味调味剂；咸味调味剂；鲜味调味剂；植物或动物产品；已知用于宠物护理产品中的化合物；已知用于个人护理产品中的化合物；已知用于家用产品中的化合物；制药制剂；局部制剂；大麻衍生或与大麻相关的产品；已知用于口腔护理产品中的化合物；饮料；香味、香水或除臭剂；已知用于消费品中的化合物；硅化合物；磨料；表面活性剂；发热剂；吸烟物品；脂肪、油脂或乳化剂；和/或益生菌或补充剂。
• ISOCYANATE PRODUCTION PROCESS
  申请人：Shinohata Masaaki

  公开号：US20110092731A1

  公开（公告）日：2011-04-21

  An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without using phosgene. The present invention discloses a process for producing an isocyanate by subjecting a carbamic acid ester to a thermal decomposition reaction, including the steps of: recovering a low boiling point component in a form of a gaseous phase component from a thermal decomposition reaction vessel in which the thermal decomposition reaction is carried out; recovering a liquid phase component containing a carbamic acid ester from a bottom of the thermal decomposition reaction vessel; and supplying all or a portion of the liquid phase component to an upper portion of the thermal decomposition reaction vessel.

  本发明的一个目的是提供一种能够在长时间内稳定地高产且不使用光气的情况下生产异氰酸酯的方法，而不会遇到先前生产异氰酸酯时的问题。本发明公开了一种通过将氨基甲酸酯经受热分解反应来生产异氰酸酯的方法，包括以下步骤：从进行热分解反应的反应釜中回收形成气相组分的低沸点组分；从热分解反应釜底部回收含有氨基甲酸酯的液相组分；并将全部或部分液相组分供给至热分解反应釜的上部。

表征谱图