4-O-tert-butyl 1-O-methyl (2S)-3-acetyl-2-methylbutanedioate | 915768-07-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: 4-O-tert-butyl 1-O-methyl (2S)-3-acetyl-2-methylbutanedioate
• CAS: 915768-07-9
• 化学式: C₁₂H₂₀O₅
• 分子量: 244.288
• InChiKey: ZYMFTGBKIMVQLV-JAVCKPHESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  69.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4-O-tert-butyl 1-O-methyl (2S)-3-acetyl-2-methylbutanedioate 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 生成 甲基(2S)-2-甲基-4-氧代戊酸酯
  参考文献：
  名称：

  The Stereoselective Synthesis of 2-Alkyl .gamma.-Keto Acid and Heterocyclic Ketomethylene Peptide Isostere Core Units Using Chiral Alkylation by 2-Triflyloxy Esters

  摘要：

  A simple and general protocol for the enantioselective preparation of gamma-keto acids and heterocyclic gamma-keto acids which have an alkyl group at C-2 is reported. The alkyl group is introduced by chiral alkylation using a scalemic 2-triflyloxy ester. The alkylation takes place with inversion of configuration and is compatible with a variety of alkyl groups. This methodology is thus well-suited for the preparation of a wide variety of ketomethylene peptide isosteres.

  DOI：

  10.1021/jo00121a031
• 作为产物：
  描述：

  乙酰乙酸叔丁酯 、 methyl (S)-2-[(trifluoromethanesulfonyl)oxy]propionate 在 sodium hydride 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 4-O-tert-butyl 1-O-methyl (2S)-3-acetyl-2-methylbutanedioate
  参考文献：
  名称：

  The Stereoselective Synthesis of 2-Alkyl .gamma.-Keto Acid and Heterocyclic Ketomethylene Peptide Isostere Core Units Using Chiral Alkylation by 2-Triflyloxy Esters

  摘要：

  A simple and general protocol for the enantioselective preparation of gamma-keto acids and heterocyclic gamma-keto acids which have an alkyl group at C-2 is reported. The alkyl group is introduced by chiral alkylation using a scalemic 2-triflyloxy ester. The alkylation takes place with inversion of configuration and is compatible with a variety of alkyl groups. This methodology is thus well-suited for the preparation of a wide variety of ketomethylene peptide isosteres.

  DOI：

  10.1021/jo00121a031

文献信息

• The Stereoselective Synthesis of 2-Alkyl .gamma.-Keto Acid and Heterocyclic Ketomethylene Peptide Isostere Core Units Using Chiral Alkylation by 2-Triflyloxy Esters
  作者：Robert V. Hoffman、Hwa-Ok Kim

  DOI：10.1021/jo00121a031

  日期：1995.8

  A simple and general protocol for the enantioselective preparation of gamma-keto acids and heterocyclic gamma-keto acids which have an alkyl group at C-2 is reported. The alkyl group is introduced by chiral alkylation using a scalemic 2-triflyloxy ester. The alkylation takes place with inversion of configuration and is compatible with a variety of alkyl groups. This methodology is thus well-suited for the preparation of a wide variety of ketomethylene peptide isosteres.