(4R,5S)-4-methyl-2,2-dioxo-5-phenyl-2γ6-[1,2,3]oxathiazolidine-3-carboxylic acid tert-butyl ester | 1380313-48-3

• 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: (4R,5S)-4-methyl-2,2-dioxo-5-phenyl-2γ6-[1,2,3]oxathiazolidine-3-carboxylic acid tert-butyl ester
• 英文别名: tert-butyl (4R,5S)-4-methyl-2,2-dioxo-5-phenyloxathiazolidine-3-carboxylate
• CAS: 1380313-48-3
• 化学式: C₁₄H₁₉NO₅S
• 分子量: 313.375
• InChiKey: OVDYFNLIXOYPKC-ZYHUDNBSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  81.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (4R,5S)-4-methyl-2,2-dioxo-5-phenyl-2γ6-[1,2,3]oxathiazolidine-3-carboxylic acid tert-butyl ester 在 potassium cyanide 、 cesium fluoride 、 三氟乙酸 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 17.0h， 生成 L-(-)-去甲伪麻黄碱
  参考文献：
  名称：

  Stereoselective Synthesis of Norephedrine and Norpseudoephedrine by Using Asymmetric Transfer Hydrogenation Accompanied by Dynamic Kinetic Resolution

  摘要：

  Each of the enantiomers of both norephedrine and norpseudoephedrine were stereoselectively prepared from the common, prochiral cyclic sulfamidate imine of racemic 1-hydroxy-1-phenyl-propan-2-one by employing asymmetric transfer hydrogenation (ATH) catalyzed by the well-defined chiral Rh-complexes, (S,S)- or (R,R)-Cp*RhCl(TsDPEN), and HCO2H/Et3N as the hydrogen source. The ATH processes are carried out under mild conditions (rt, 15 min) and are accompanied by dynamic kinetic resolution.

  DOI：

  10.1021/jo300867y
• 作为产物：
  描述：

  1-羟基-1-苯乙酮 在 4-二甲氨基吡啶 、 甲酸 、 (1S,2S)-Cp*RhCl(TsNCHPhCHPhNH₂) 、 氨基磺酰氯 、 对甲苯磺酸 、 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基乙酰胺 、 乙酸乙酯 、 甲苯 为溶剂， 反应 1.92h， 生成 (4R,5S)-4-methyl-2,2-dioxo-5-phenyl-2γ6-[1,2,3]oxathiazolidine-3-carboxylic acid tert-butyl ester
  参考文献：
  名称：

  Stereoselective Synthesis of Norephedrine and Norpseudoephedrine by Using Asymmetric Transfer Hydrogenation Accompanied by Dynamic Kinetic Resolution

  摘要：

  Each of the enantiomers of both norephedrine and norpseudoephedrine were stereoselectively prepared from the common, prochiral cyclic sulfamidate imine of racemic 1-hydroxy-1-phenyl-propan-2-one by employing asymmetric transfer hydrogenation (ATH) catalyzed by the well-defined chiral Rh-complexes, (S,S)- or (R,R)-Cp*RhCl(TsDPEN), and HCO2H/Et3N as the hydrogen source. The ATH processes are carried out under mild conditions (rt, 15 min) and are accompanied by dynamic kinetic resolution.

  DOI：

  10.1021/jo300867y

文献信息

• Stereoselective Synthesis of Norephedrine and Norpseudoephedrine by Using Asymmetric Transfer Hydrogenation Accompanied by Dynamic Kinetic Resolution
  作者：Hyeon-Kyu Lee、Soyeong Kang、Eun Bok Choi

  DOI：10.1021/jo300867y

  日期：2012.6.15

  Each of the enantiomers of both norephedrine and norpseudoephedrine were stereoselectively prepared from the common, prochiral cyclic sulfamidate imine of racemic 1-hydroxy-1-phenyl-propan-2-one by employing asymmetric transfer hydrogenation (ATH) catalyzed by the well-defined chiral Rh-complexes, (S,S)- or (R,R)-Cp*RhCl(TsDPEN), and HCO2H/Et3N as the hydrogen source. The ATH processes are carried out under mild conditions (rt, 15 min) and are accompanied by dynamic kinetic resolution.