3-benzyl-4-cyclopropyloxazolidine-2,5-dione | 444023-48-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 3-benzyl-4-cyclopropyloxazolidine-2,5-dione
• 英文别名: 3-Benzyl-4-cyclopropyl-1,3-oxazolidine-2,5-dione
• CAS: 444023-48-7
• 化学式: C₁₃H₁₃NO₃
• 分子量: 231.251
• InChiKey: DNAZCKSRGWRGGU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  甲醇 、 3-benzyl-4-cyclopropyloxazolidine-2,5-dione 反应 96.0h， 以21 mg的产率得到methyl 2-(N-benzylamino)-2-cyclopropylethanoate
  参考文献：
  名称：

  Enantioselective Synthesis of α-Amino Acids from N-Tosyloxy β-Lactams Derived from β-Keto Esters

  摘要：

  A novel synthetic sequence has been developed to convert simple beta-keto esters into enantiomerically enriched alpha-amino acids. The key features of this sequence include the addition of azide to the C3 position of beta-keto ester derived N-tosyloxy-beta-lactams through a concomitant nucleophilic addition/ N-O bond reduction reaction, a mild CsF-induced N1 benzylation of a-azido monocyclic beta-lactams, the preparation of alpha-keto-beta-lactams through a novel four-step sequence from the corresponding 3-azido-1-benzyl-beta-lactams, and TEMPO-mediated ring expansion of these compounds to the corresponding N-carboxy anhydrides (NCAs). In addition, the synthesis, isolation, and characterization of unusual 3-imino and 3-chloramino-beta-lactams is reported.

  DOI：

  10.1021/jo0162437
• 作为产物：
  描述：

  (+/-)-trans-3-azido-1-benzyl-4-cyclopropyl-2-azetidinone 在 10percent Pd/C 2,2,6,6-tetramethyl-piperidine-N-oxyl 、 sodium hypochlorite 、 次氯酸叔丁酯 、 氢气 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 potassium bromide 作用下， 以 四氢呋喃 、 phosphate buffer 、 二氯甲烷 为溶剂， -78.0~20.0 ℃ 、101.33 kPa 条件下， 反应 3.0h， 生成 3-benzyl-4-cyclopropyloxazolidine-2,5-dione
  参考文献：
  名称：

  Enantioselective Synthesis of α-Amino Acids from N-Tosyloxy β-Lactams Derived from β-Keto Esters

  摘要：

  A novel synthetic sequence has been developed to convert simple beta-keto esters into enantiomerically enriched alpha-amino acids. The key features of this sequence include the addition of azide to the C3 position of beta-keto ester derived N-tosyloxy-beta-lactams through a concomitant nucleophilic addition/ N-O bond reduction reaction, a mild CsF-induced N1 benzylation of a-azido monocyclic beta-lactams, the preparation of alpha-keto-beta-lactams through a novel four-step sequence from the corresponding 3-azido-1-benzyl-beta-lactams, and TEMPO-mediated ring expansion of these compounds to the corresponding N-carboxy anhydrides (NCAs). In addition, the synthesis, isolation, and characterization of unusual 3-imino and 3-chloramino-beta-lactams is reported.

  DOI：

  10.1021/jo0162437