3-fluoro-2-oxobutanoic acid | 3413-70-5

• 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: 3-fluoro-2-oxobutanoic acid
• CAS: 3413-70-5
• 化学式: C₄H₅FO₃
• 分子量: 120.08
• InChiKey: XYSMVOHWPHCUEU-UHFFFAOYSA-N

物化性质

• 沸点：
  169.8±15.0 °C(Predicted)
• 密度：
  1.303±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  54.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-fluoro-2-oxobutanoic acid 在 ammonium hydroxide 、 sodium tetrahydroborate 、 碳酸氢钠 作用下， 生成 erythro-L-β-Fluor-α-aminobuttersaeure
  参考文献：
  名称：

  Addition of Molecular Fluorine to Azlactones: General Synthetic Method of erythro-.BETA.-Fluorinated .ALPHA.-Amino Acids.

  摘要：

  分子氟与由适当醛类（或酮类）和苯甲酰甘氨酸生成的不饱和氮内酯反应，可得到二氟化加合物。通过碱性水解从加合物中得到的 β-氟化 α-氧代烷酸经还原胺化反应生成红-β-氟化脂肪族 α-氨基酸。同样的反应用于 3-苯基-2-苯甲酰氨基丙烯酸甲酯时，可得到相应的芳香族氨基酸。因此，整个序列提供了一种合成红-β-氟化 α-氨基酸的通用方法。

  DOI：

  10.1248/cpb.43.760
• 作为产物：
  描述：

  2-酮丁酸 在 N-fluorobis<(trifluoromethyl)sulfonyl>imide 作用下， 以 氯仿 为溶剂， 反应 18.0h， 以95%的产率得到3-fluoro-2-oxobutanoic acid
  参考文献：
  名称：

  N-fluorobis[(trifluoromethyl)sulfonyl]imide: an efficient reagent for the .alpha.-fluorination of functionalized carbonyl compounds

  摘要：

  The N-fluorobis[(trifluoromethyl)sulfonyl]imide (1) has been used in the electrophilic fluorination of the lithium enolate of esters, amides, and ketones. The corresponding alpha-fluorocarbonyl compounds have been obtained in good yields. The alpha-fluorination of beta-diesters, beta-diamides, beta-keto esters, and beta-diketones has been performed either on the neutral compounds or on the metal enolates. In this way some geminal azafluoro, chlorofluoro, fluorooxy compounds have been prepared in nearly quantitative yields. Also some alpha-keto esters and acids have been selectively monofluorinated in the beta-position by simple treatment of the neutral compound with 1.

  DOI：

  10.1021/jo00016a022

文献信息

• Biocatalytic Asymmetric Construction of Secondary and Tertiary Fluorides from β‐Fluoro‐α‐Ketoacids**
  作者：Jason Fang、Laura E. Turner、Michelle C. Y. Chang

  DOI：10.1002/anie.202201602

  日期：2022.5.16

  Biocatalytic asymmetric synthesis of secondary and tertiary fluorides is performed by the pyruvate aldolase HpcH and its engineered variants, utilizing β-fluoro-α-ketoacids as non-native donor substrates. Rationalization of beneficial mutations and optimization of reaction conditions allowed for the chemoenzymatic preparation of fluorinated synthons with relevance to bioactive natural products and

  二级和三级氟化物的生物催化不对称合成由丙酮酸醛缩酶 HpcH 及其工程变体进行，利用 β-氟-α-酮酸作为非天然供体底物。有益突变的合理化和反应条件的优化允许化学酶法制备与生物活性天然产物和药物相关的氟化合成子。
• N-fluorobis[(trifluoromethyl)sulfonyl]imide: an efficient reagent for the .alpha.-fluorination of functionalized carbonyl compounds
  作者：Giuseppe Resnati、Darryl D. DesMarteau

  DOI：10.1021/jo00016a022

  日期：1991.8

  The N-fluorobis[(trifluoromethyl)sulfonyl]imide (1) has been used in the electrophilic fluorination of the lithium enolate of esters, amides, and ketones. The corresponding alpha-fluorocarbonyl compounds have been obtained in good yields. The alpha-fluorination of beta-diesters, beta-diamides, beta-keto esters, and beta-diketones has been performed either on the neutral compounds or on the metal enolates. In this way some geminal azafluoro, chlorofluoro, fluorooxy compounds have been prepared in nearly quantitative yields. Also some alpha-keto esters and acids have been selectively monofluorinated in the beta-position by simple treatment of the neutral compound with 1.
• Addition of Molecular Fluorine to Azlactones: General Synthetic Method of erythro-.BETA.-Fluorinated .ALPHA.-Amino Acids.
  作者：Chikara KANEKO、Jun CHIBA、Akemi TOYOTA、Masayuki SATO

  DOI：10.1248/cpb.43.760

  日期：——

  Reaction of molecular fluorine with unsaturated azlactones derived from appropriate aldehydes (or ketones) and benzoylglycine afforded the difluorinated adducts. The reductive amination reaction of the β-fluorinated α-oxoalkanoic acids obtained from the adducts by basic hydrolysis gave erythro-β-fluorinated aliphatic α-amino acids. The same reactions, when applied to methyl 3-phenyl-2-benzoylaminoacrylate, afforded the corresponding aromatic amino acid. Hence, the entire sequence provides a general method for the synthesis of erythro-β-fluorinated α-amino acids.

  分子氟与由适当醛类（或酮类）和苯甲酰甘氨酸生成的不饱和氮内酯反应，可得到二氟化加合物。通过碱性水解从加合物中得到的 β-氟化 α-氧代烷酸经还原胺化反应生成红-β-氟化脂肪族 α-氨基酸。同样的反应用于 3-苯基-2-苯甲酰氨基丙烯酸甲酯时，可得到相应的芳香族氨基酸。因此，整个序列提供了一种合成红-β-氟化 α-氨基酸的通用方法。