Ethyl 3,3-difluoro-2-hydroxy-4-methylpentanoate | 165544-33-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Ethyl 3,3-difluoro-2-hydroxy-4-methylpentanoate
• CAS: 165544-33-2
• 化学式: C₈H₁₄F₂O₃
• 分子量: 196.194
• InChiKey: YZSFKGNXGFLZRB-UHFFFAOYSA-N

物化性质

• 沸点：
  247.2±35.0 °C(Predicted)
• 密度：
  1.132±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  13
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Ethyl 3,3-difluoro-2-hydroxy-4-methylpentanoate 在 戴斯-马丁氧化剂 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 Ethyl 3,3-difluoro-4-methyl-2-oxopentanoate 、 Ethyl 3,3-difluoro-4-methyl-2-oxopentanoate hydrate
  参考文献：
  名称：

  Conversion of .alpha.-Keto Esters into .beta.,.beta.-Difluoro-.alpha.-keto Esters and Corresponding Acids: A Simple Route to a Novel Class of Serine Protease Inhibitors

  摘要：

  The preparation of a series of beta,beta-difluoro-alpha-keto esters and corresponding acids RCF(2)COCO(2)R' (R = Me, Et; i-Pr, Bn, and Ph; R' = Et and H), designed as potential inhibitors of serine proteases, is described. The standard procedure developed consists in the initial formation of an alpha,alpha-difluoro ester from an alpha-keto ester, followed by a simple four-step sequence involving the synthesis of hemiacetal, cyanohydrin, and alpha-hydroxy ester difluorinated intermediates. This method provides an easy route to beta,beta-difluoro-alpha-keto esters and corresponding acids, via ''formal'' insertion of a difluoromethylene group between the R substituent and the alpha-carbonyl group of a generic alpha-keto ester.

  DOI：

  10.1021/jo00121a040
• 作为产物：
  描述：

  3,3-Difluoro-2-hydroxy-4-methylpentanenitrile 在 盐酸 、 硫酸 作用下， 反应 5.5h， 生成 Ethyl 3,3-difluoro-2-hydroxy-4-methylpentanoate
  参考文献：
  名称：

  Conversion of .alpha.-Keto Esters into .beta.,.beta.-Difluoro-.alpha.-keto Esters and Corresponding Acids: A Simple Route to a Novel Class of Serine Protease Inhibitors

  摘要：

  The preparation of a series of beta,beta-difluoro-alpha-keto esters and corresponding acids RCF(2)COCO(2)R' (R = Me, Et; i-Pr, Bn, and Ph; R' = Et and H), designed as potential inhibitors of serine proteases, is described. The standard procedure developed consists in the initial formation of an alpha,alpha-difluoro ester from an alpha-keto ester, followed by a simple four-step sequence involving the synthesis of hemiacetal, cyanohydrin, and alpha-hydroxy ester difluorinated intermediates. This method provides an easy route to beta,beta-difluoro-alpha-keto esters and corresponding acids, via ''formal'' insertion of a difluoromethylene group between the R substituent and the alpha-carbonyl group of a generic alpha-keto ester.

  DOI：

  10.1021/jo00121a040

文献信息

• Conversion of .alpha.-Keto Esters into .beta.,.beta.-Difluoro-.alpha.-keto Esters and Corresponding Acids: A Simple Route to a Novel Class of Serine Protease Inhibitors
  作者：Melchiorre F. Parisi、Giuseppe Gattuso、Anna Notti、Francisco M. Raymo、Robert H. Abeles

  DOI：10.1021/jo00121a040

  日期：1995.8

  The preparation of a series of beta,beta-difluoro-alpha-keto esters and corresponding acids RCF(2)COCO(2)R' (R = Me, Et; i-Pr, Bn, and Ph; R' = Et and H), designed as potential inhibitors of serine proteases, is described. The standard procedure developed consists in the initial formation of an alpha,alpha-difluoro ester from an alpha-keto ester, followed by a simple four-step sequence involving the synthesis of hemiacetal, cyanohydrin, and alpha-hydroxy ester difluorinated intermediates. This method provides an easy route to beta,beta-difluoro-alpha-keto esters and corresponding acids, via ''formal'' insertion of a difluoromethylene group between the R substituent and the alpha-carbonyl group of a generic alpha-keto ester.