5-乙酰基-2-甲氧基苯甲醛 | 531-99-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 5-乙酰基-2-甲氧基苯甲醛
• 英文名称: 5-acetyl-2-methoxybenzaldehyde
• 英文别名: 5-acetyl-2-methoxy-benzaldehyde；5-Acetyl-2-methoxy-benzaldehyd；2-methoxy-5-acetylbenzaldehyde
• CAS: 531-99-7
• 化学式: C₁₀H₁₀O₃
• 分子量: 178.188
• InChiKey: WGQVKYPDHREEJU-UHFFFAOYSA-N

物化性质

• 沸点：
  332.9±27.0 °C(Predicted)
• 密度：
  1.137±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2914509090

反应信息

• 作为反应物：
  描述：

  5-乙酰基-2-甲氧基苯甲醛 在 五氟化锑 、 氟磺酸 作用下， 以 liquid sulphur dioxide 为溶剂， 生成 protonated 5-acetyl-2-methoxybenzaldehyde
  参考文献：
  名称：

  Substituent control of intramolecular hydrogen bonding in formyl-protonated o-anisaldehydes: a stable ion and semiempirical MO investigation

  摘要：

  o-Anisaldehyde and its 5-Br, 5-F, 5-CF3, 5-CN, 5-NO2, and 5-COMe derivatives are protonated at the formyl group in 1:1 SbF5-FSO3H/SO2 (or SO2ClF) to give persistent carboxonium ions as mixtures of Z and E geometrical isomers. The cyano, nitro, and acetyl substituents are also protonated, leading to dications and additional geometrical isomers in the nitro and acetyl cases. The carboxonium ions are predominantly in the Z,syn configuration, but with increased amounts of the E,anti configuration with increased electron withdrawal by the substituents. With 5-NO2H+, E isomers become more abundant than Z. The formyl protonated 2-(trifluoromethoxy)benzaldehyde shows a strong preference for the E configuration. The preference for the Z,syn form is attributed to intramolecular hydrogen bonding that becomes less favorable as electron density is withdrawn from the methoxyl oxygen. The log Z/E values correlate with differences in energy content of the isomers predicted in AM1 calculations, and the chemical shift of the hydroxyl proton of the carboxonium group correlates well with predicted charge on the proton.

  DOI：

  10.1021/jo00058a018
• 作为产物：
  描述：

  1-(3-溴-4-甲氧基苯基)乙烯酮 在 盐酸 、 正丁基锂 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 2.45h， 生成 5-乙酰基-2-甲氧基苯甲醛
  参考文献：
  名称：

  Substituent control of intramolecular hydrogen bonding in formyl-protonated o-anisaldehydes: a stable ion and semiempirical MO investigation

  摘要：

  o-Anisaldehyde and its 5-Br, 5-F, 5-CF3, 5-CN, 5-NO2, and 5-COMe derivatives are protonated at the formyl group in 1:1 SbF5-FSO3H/SO2 (or SO2ClF) to give persistent carboxonium ions as mixtures of Z and E geometrical isomers. The cyano, nitro, and acetyl substituents are also protonated, leading to dications and additional geometrical isomers in the nitro and acetyl cases. The carboxonium ions are predominantly in the Z,syn configuration, but with increased amounts of the E,anti configuration with increased electron withdrawal by the substituents. With 5-NO2H+, E isomers become more abundant than Z. The formyl protonated 2-(trifluoromethoxy)benzaldehyde shows a strong preference for the E configuration. The preference for the Z,syn form is attributed to intramolecular hydrogen bonding that becomes less favorable as electron density is withdrawn from the methoxyl oxygen. The log Z/E values correlate with differences in energy content of the isomers predicted in AM1 calculations, and the chemical shift of the hydroxyl proton of the carboxonium group correlates well with predicted charge on the proton.

  DOI：

  10.1021/jo00058a018

文献信息

• An Improved Synthesis of 2-Nitrobenzo[<i>b</i>]furans
  作者：Anne Tromelin、Pierre Demerseman、René Royer

  DOI：10.1055/s-1985-31435

  日期：——

  2-Nitrobenzo[b]furans 4 are prepared in improved yields by reacting o-hydroxybenzaldehydes 1 and bromonitromethane (2) at low temperature in order to avoid the dehydration of the aldol intermediate 3 in the alkaline condensation medium. This aldol 3 is then quantitatively dehydrated by heating in acetic anhydride.

  通过在低温下将邻羟基苯甲醛1与溴硝基甲烷2反应，以避免在碱性缩合介质中脱水，从而提高2-硝基苯并[b]呋喃4的产率。随后，通过在乙酸酐中加热，该醛醇中间体3可定量脱水。
• Compositions containing aromatic aldehydes and their use in treatments
  申请人：——

  公开号：US20030124157A1

  公开（公告）日：2003-07-03

  Disclosed are pharmaceutical and cosmetic compositions containing aromatic aldehyde compounds. Some of the disclosed compositions are useful as topical therapeutics for treating inflammatory dermatologic conditions. Some of the compositions are useful in transdermal and other systemic dose forms for treating other inflammatory conditions in mammals.

  揭示了含有芳香醛类化合物的药用和化妆品组合物。其中一些组合物可用作治疗炎症性皮肤病的局部治疗药物。其中一些组合物可用于治疗哺乳动物体内其他炎症性疾病的经皮和其他系统剂型。
• [EN] BIOACTIVE PHENOLATE IONIC COMPLEXES<br/>[FR] COMPLEXES IONIQUES PHÉNOLATE BIOACTIFS
  申请人：YISSUM RES DEV CO OF HEBREW UNIV JERUSALEM LTD

  公开号：WO2021214762A1

  公开（公告）日：2021-10-28

  The invention provides an isolated material, or a phenolate form of at least one phenol- containing active material, wherein the isolated material comprises one or more phenolate species and a counter ion (a cation) in the form of a metal salt, a phosphonium or an ammonium.

  该发明提供了一种孤立的材料，或者至少一种含酚活性物质的酚酚酚形式，其中该孤立的材料包括一个或多个酚酚酚物种和一个对离子（阳离子）的金属盐、磷酰胺或铵的形式。
• 4-Halogen-5-(trichlormethyl-phenyl)-oxazol-Derivate, ein Verfahren zu ihrer Herstellung und sie enthaltende strahlungsempfindliche Massen
  申请人：HOECHST AKTIENGESELLSCHAFT

  公开号：EP0041675A2

  公开（公告）日：1981-12-16

  Die Erfindung betrifft 4-Halogen-5-(halogenmethyl- phenyl)oxazol-Derivate der allgemeinen Formel I, in der bedeuten Hal1 ein Halogenatom Hal2 ein Chlor- oder Bromatom m eine ganze Zahl von 1 bis 3 n eine ganze Zahl von 1 bis 4 R' ein Wasserstoffatom oder eine weitere Gruppe CH3-m Hal2m, und R2 einen n-wertigen, gegebenenfalls substituierten, ungesättigten organischen Rest. Sie betrifft außerdem ein Verfahren zur Herstellung dieser Verbindungen aus Halogenmethyl-benzoylcyaniden der allgemeinen Formel II und einem Aldehyd der allgemeinen Formel III unter Einwirkung von HHal1, wobei die Reaktionsprodukte durch Hydrolyse freigesetzt werden. Diese Verbindungen können in strahlungsempfindlichen Massen eingesetzt werden, in denen sie beispielsweise Polymerisationsreaktionen, Vernetzungen, ionische Reaktionen, farbliche Veränderungen oder andersartige Folgereaktionen auslösen.

  本发明涉及通式 I 的 4-卤代-5-（卤代甲基苯基）噁唑衍生物，其中 Hal1 是卤素原子 Hal2 是氯原子或溴原子 m 是 1 至 3 的整数 n 是 1 至 4 的整数 R' 是氢原子或另一个基团 CH3-m Hal2m，以及 R2 是 n 价、任选取代的不饱和有机基。 本发明还涉及在 HHal1 的作用下，由通式 II 的卤代甲基苯甲酰基氰化物和通式 III 的醛制备这些化合物的工艺，反应产物通过水解释放出来。这些化合物可用于对辐射敏感的组合物中，在这些组合物中，它们会引发聚合反应、交联反应、离子反应、颜色变化或其他类型的后续反应。
• Water soluble phenolics derivatives with dermocosmetic and therapeutic applications
  申请人：Libragen

  公开号：EP1867729A1

  公开（公告）日：2007-12-19

  The invention relates to the preparation of phenolics derivatives by enzymatic condensation of phenolics selected among pyrocatechol or its derivatives including (i) protocatechuic acid and its derivatives, (ii) 3,4-dihydroxycinnamic acid with its transisomer or caffeic acid and its derivatives, especially hydrocaffeic acid, rosmarinic acid, chlorogenic acid and caffeic acid phenethyl ester, and with its cis-isomer and its derivatives, especially esculin, (iii) dihydroxyphenylglycol, and (iv) members of the flavonoid familly such as taxifolin and fustin (dihydroflavonols), fisetin (a flavonol), eriodictyol (a flavanone), , with the glucose moiety of sucrose. The production of said phenolics derivatives is achieved with a glucosyltransferase (EC 2.4.1.5) obtained from a culture of Leuconostoc species, and more particularly from the culture of Leuconostoc mesenteroides NRRL B-512F. These O-glucosides of selected phenolics are new, have a solubility in water higher than that of their parent polyphenol and have useful applications in cosmetic and pharmaceutical compositions, such as antioxidative, antiviral, antibacterial, immune-stimulating, antiallergic, antihypertensive, antiischemic, antiarrhytmic, antithrombotic, hypocholesterolemic, antilipoperoxidant, hepatoprotective, anti-inflammatory, anticarcinogenic antimutagenic, antineoplastic, anti-thrombotic, and vasodilatory formulations, or in any other field of application. All the more, glucosylated phenolics derivatives objects of the invention can be hydrolyzed by the human natural microbiotes, thus releasing the active part of the phenolic compound upon time during their usage or by an α-glucosidase (EC 3.2.1.20).

  本发明涉及用酶缩合法制备酚类衍生物，所选酚类包括焦儿茶酚或其衍生物，包括(i) 原儿茶酸及其衍生物，(ii) 3,4-二羟基肉桂酸与其反式异构体或咖啡酸及其衍生物，特别是氢咖啡酸、(iii) 二羟基苯甘醇，以及 (iv) 黄酮家族成员，如 taxifolin 和 fustin（二氢黄酮醇）、fisetin（一种黄酮醇）、eriodictyol（一种黄酮），以及蔗糖的葡萄糖分子。上述酚类衍生物的生产是通过一种葡糖基转移酶（EC 2.4.1.5）实现的，该酶是从白色念珠菌（Leuconostoc species）的培养物中获得的，尤其是从中肠白色念珠菌（Leuconostoc mesenteroides NRRL B-512F）的培养物中获得的。抗高血压、抗缺血、抗心律失常、抗血栓、降胆固醇、抗脂过氧化、保肝、抗炎、抗癌、抗突变、抗肿瘤、抗血栓和血管扩张配方，或任何其他应用领域。此外，本发明的葡糖基化酚类衍生物可被人体天然微生物水解，从而在使用过程中或通过α-葡萄糖苷酶（EC 3.2.1.20）释放出酚类化合物的活性部分。