2-(trimethylsilyl)-4-furaldehyde | 105426-88-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(trimethylsilyl)-4-furaldehyde
• 英文别名: 3-Furancarboxaldehyde, 5-(trimethylsilyl)-；5-trimethylsilylfuran-3-carbaldehyde
• CAS: 105426-88-8
• 化学式: C₈H₁₂O₂Si
• 分子量: 168.268
• InChiKey: TUTJQLMKDUIGHQ-UHFFFAOYSA-N

物化性质

• 沸点：
  182.9±25.0 °C(Predicted)
• 密度：
  0.98±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.64
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  30.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(trimethylsilyl)-4-furaldehyde 在 rose bengal 氧气 、 magnesium 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 Acetic acid 1-(2-hydroxy-5-oxo-2,5-dihydro-furan-3-yl)-nonadecyl ester
  参考文献：
  名称：

  Singlet oxygen oxidation of substituted furans to 5-hydroxy-2(5H)-furanone

  摘要：

  The conditions for the regiospecific singlet oxygen oxidation of various 2,4-disubstituted furans 9 to 4-substituted-2 (5H)-furanones 3 are developed. The presence of a C-2 substituent (e.g., trimethylsilyl, tert-butyldimethylsilyl, or tributylstannyl) in 9 is an absolute requirement for the formation of the 4-substituted-5-hydroxy-2(5H)-furanone regioisomer 3. When the C-2 substituent is triethylsilyl (TES) or TBDMS, however, apart from 3, the corresponding 5-trialkylsiloxy derivative 11 is also isolated in a significant amount. These silyl acetals are unexpectedly stable but can be hydrolyzed back to 3 on stirring with dilute acid. The formation of silyl acetals, to our knowledge, has never been reported in the singlet oxygen oxidation of (trialkylsilyl)furan. A plausible mechanism for their formation is proposed. The presence of a catalytic amount of water in the oxidation of 2-(trialkylsilyl)-4-substituted-furans not only eliminates the formation of the silyl acetals but also speeds up the rate of the oxidation process. Moreover, the oxidation can then be carried out at 0-degrees-C instead of at -78-degrees-C. Oxidation of 2-(1-hydroxyalkyl)-4-substituted-furans in the absence of a reducing agent gives little or no sign of 2,5-disubstituted-6-hydroxy-3(2H)-pyranone 23 but instead 26 selectively. Thus, the (1-hydroxy)alkyl group can be utilized as the trialkylsilyl or trialkylstannyl group in dictating the regioselectivity in the singlet oxygen oxidation of substituted furans.

  DOI：

  10.1021/jo00025a012
• 作为产物：
  描述：

  4-(1-Hydroxymethyl)-2-trimethylsilylfuran 以79%的产率得到2-(trimethylsilyl)-4-furaldehyde
  参考文献：
  名称：

  Two syntheses of manoalide via heteroatom-assisted alkyne carbometallation

  摘要：

  Two approaches to the sesterterpenoid phospholipase A(2) inhibitors seco-manoalide (3) and manoalide (1) are described based on carbometallation of propargylic alcohols to generate the functionalised C6-C7 trisubstituted alkene. Both syntheses also deploy the photooxidation of a furan in order to generate a 4-substituted-5-hydroxy-2(5H)-furanone moiety.

  DOI：

  10.1016/s0040-4020(01)85353-9

文献信息

• Intermediates and processes for preparing 4-substituted 2-5(H)-furanones
  申请人：Allergan, Inc.

  公开号：US05082954A1

  公开（公告）日：1992-01-21

  Anti-inflammatory 4-substituted 2-furanones are made from intermediates having the formulas: ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 independently are n-alkyl of 1 to 6 carbons, or branched chain alkyl of 1 to 6 carbons; X is H, OH, NH.sub.2, I or Br; R.sub.4 is H, alkyl of 1-20 carbons, phenyl[C.sub.1 -C.sub.20 alkyl], naphthyl[C.sub.1 -C.sub.20 alkyl], CH.sub.2 OH, CH.sub.2 NH.sub.2, CH.sub.2 CH.sub.2 OH, CH.sub.2 --CHO, CH.sub.2 --COOH or CH.sub.2 --COOR.sub.5, and R.sub.5 is alkyl of 1 to 6 carbons, with the proviso that when X is hydrogen then R.sub.4 is selected from the group consisting of CH.sub.2 OH, CH.sub.2 NH.sub.2, CH.sub.2 CH.sub.2 OH, CH.sub.2 --CHO, or CH.sub.2 --COOR.sub.5 ; ##STR2## in which R.sub.1, R.sub.2 and R.sub.3 independently are n-alkyl of 1 to 6 carbons, or branched chain alkyl or 1 to 6 carbons, and R.sub.5 is alkyl or 1 to 6 carbons; ##STR3## in which R.sub.1, R.sub.2 and R.sub.3 independently are n-alkyl of 1 to 6 carbons, or branched chain alkyl of 1 to 6 carbons, and R.sub.6 is phenyl, or alkyl of 1 to 6 carbons, and ##STR4## in which R.sub.1, R.sub.2 and R.sub.3 independently are n-alkyl of 1 to 6 carbons, or branched chain alkyl of 1 to 6 carbons.

  抗炎症的4-取代的2-呋喃酮是由具有以下结构的中间体制备的：##STR1## 其中R.sub.1，R.sub.2和R.sub.3独立地是1到6个碳原子的n-烷基，或者1到6个碳原子的支链烷基；X是H，OH，NH.sub.2，I或Br；R.sub.4是H，1-20个碳原子的烷基，苯基[C.sub.1-C.sub.20烷基]，萘基[C.sub.1-C.sub.20烷基]，CH.sub.2 OH，CH.sub.2 NH.sub.2，CH.sub.2 CH.sub.2 OH，CH.sub.2 --CHO，CH.sub.2 --COOH或CH.sub.2 --COOR.sub.5，而R.sub.5是1到6个碳原子的烷基，但当X为氢时，R.sub.4从CH.sub.2 OH，CH.sub.2 NH.sub.2，CH.sub.2 CH.sub.2 OH，CH.sub.2 --CHO或CH.sub.2 --COOR.sub.5的组中选择；##STR2## 其中R.sub.1，R.sub.2和R.sub.3独立地是1到6个碳原子的n-烷基，或者1到6个碳原子的支链烷基，而R.sub.5是1到6个碳原子的烷基；##STR3## 其中R.sub.1，R.sub.2和R.sub.3独立地是1到6个碳原子的n-烷基，或者1到6个碳原子的支链烷基，而R.sub.6是苯基，或者1到6个碳原子的烷基，以及##STR4## 其中R.sub.1，R.sub.2和R.sub.3独立地是1到6个碳原子的n-烷基，或者1到6个碳原子的支链烷基。
• Anti-inflammatory furanones
  申请人：Allergan, Inc.

  公开号：US05134128A1

  公开（公告）日：1992-07-28

  New 5-hydroxy-2-furanone compounds having anti-inflammatory, immunosuppressive and anti-proliferative activity and are useful in treating psoriasis and modifying calcium homeostasis.

  新的具有抗炎、免疫抑制和抗增殖活性的5-羟基-2-呋喃酮化合物对治疗牛皮癣和调节钙稳态具有用处。
• Pharmaceutical compositions and method for administering 3 and
  申请人：Allergan, Inc.

  公开号：US05268387A1

  公开（公告）日：1993-12-07

  3 and 4-substituted 2(5H)-furanone compounds influence the balance between bone production and bone resorption in mammals, including humans. The active compounds are administered to mammals, including humans, in an effective dose which ranges between 0.05 to 100 mg per kilogram, body weight, per day, for the purpose of influencing the balance between bone production and bone resorption, and particularly for treating osteoporosis.

  3和4-取代的2(5H)-呋喃酮化合物影响哺乳动物，包括人类的骨生成和骨吸收之间的平衡。这些活性化合物以有效剂量（每公斤体重范围在0.05至100毫克之间）被用于哺乳动物，包括人类，旨在影响骨生成和骨吸收之间的平衡，特别用于治疗骨质疏松症。
• Process of using anti-inflammatory furanones as selective calcium
  申请人：Allergan, Inc.

  公开号：US05376676A1

  公开（公告）日：1994-12-27

  4-(C.sub.10 -C.sub.20)alkyl-2(5H)-furanone compounds are selective calcium channel inhibitors and useful for treatment of diseases such as hypertension, angina, cardiac arrythmia, pulmonary hypertension, aortic insufficiency, Raynand's disease, migraine headaches, deficiency of platelet function, atherosclerosis, ischemia, reprofusion injury, bronchial asthma, esophageal spasm, dysmenorhea, allergic contact dermatitis, acute inflammatory response, glaucoma and as potentiators of chemotherapeutic agents in the treatment of tumors.

  4-(C.sub.10 -C.sub.20)烷基-2(5H)-呋喃酮类化合物是选择性钙通道抑制剂，可用于治疗高血压、心绞痛、心律失常、肺动脉高压、主动脉瓣不全、雷诺病、偏头痛、血小板功能缺陷、动脉粥样硬化、缺血、再灌注损伤、支气管哮喘、食管痉挛、痛经、过敏性接触性皮炎、急性炎症反应、青光眼，并在肿瘤治疗中作为化疗药物的增效剂。
• Anti-inflammatory 2-furanones
  申请人：Allergan, Inc.

  公开号：US05045564A1

  公开（公告）日：1991-09-03

  New 2-furanone compounds have calcium channel antagonist activity and are useful as anti-inflammatory agents and in treating psoriasis.

  新的2-呋喃酮化合物具有钙通道拮抗活性，可用作抗炎药物，并用于治疗牛皮癣。