3-cyclopropyl-3-hydroxy-N-phenylmethoxypropanamide | 444023-11-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3-cyclopropyl-3-hydroxy-N-phenylmethoxypropanamide
• CAS: 444023-11-4
• 化学式: C₁₃H₁₇NO₃
• 分子量: 235.283
• InChiKey: AMNLEZGRGXNKRP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  58.6
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-cyclopropyl-3-hydroxy-N-phenylmethoxypropanamide 在 palladium on activated charcoal 四氯化碳 、 2,2,6,6-tetramethyl-piperidine-N-oxyl 、 sodium hypochlorite 、 次氯酸叔丁酯 、 叠氮基三甲基硅烷 、 氢气 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 、 N,N-二异丙基乙胺 、 三苯基膦 、 cesium fluoride 、 potassium bromide 作用下， 以 四氢呋喃 、 甲醇 、 phosphate buffer 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， -78.0~20.0 ℃ 、101.33 kPa 条件下， 反应 3.5h， 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
• 作为产物：
  描述：

  苄氧基胺盐酸盐 、 (+/-)-methyl 3-(cyclopropyl)-3-hydroxypropanoate 在 三甲基铝 作用下， 以 正庚烷 、 二氯甲烷 为溶剂， 以82%的产率得到3-cyclopropyl-3-hydroxy-N-phenylmethoxypropanamide
  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

文献信息

• Enantioselective Synthesis of α-Amino Acids from <i>N</i>-Tosyloxy β-Lactams Derived from β-Keto Esters
  作者：Timothy B. Durham、Marvin J. Miller

  DOI：10.1021/jo0162437

  日期：2003.1.1

  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.