methyl (R)-(+)-2-(phenylthio)propanoate | 267668-18-8

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: methyl (R)-(+)-2-(phenylthio)propanoate
• 英文别名: methyl (2R)-2-phenylsulfanylpropanoate
• CAS: 267668-18-8
• 化学式: C₁₀H₁₂O₂S
• 分子量: 196.27
• InChiKey: QRANRVOUOAPAEV-MRVPVSSYSA-N

物化性质

• 沸点：
  269.8±23.0 °C(Predicted)
• 密度：
  1.12±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  51.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl (R)-(+)-2-(phenylthio)propanoate 在 二异丁基氢化铝 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 生成 (R)-2-Phenylsulfanyl-propionaldehyde
  参考文献：
  名称：

  Fe(II)-Catalyzed Imidation of Allyl Sulfides and Subsequent [2,3]-Sigmatropic Rearrangement. Preparation of α-Branched N-tert-Butyloxycarbonyl (Boc)-Protected N-Allylamines

  摘要：

  Allyl aryl sulfides 1 and 5 were shown to undergo an imidation/[2,3]-sigmatropic rearrangement reaction upon treatment with N-tert-butyloxycarbonyl azide (BocN(3)) and catalytic amounts of FeCl2 in CH2Cl2. The N-Boc-protected N-allyl sulfenamides 3 and 21 were obtained in yields between 48 and 75% (12 examples), Whereas the reaction is well suited for the transformation of alpha-unbranched sulfides to a-branched sulfenamides, the enantiomerically pure alpha-branched sulfides 10 and 13 reacted sluggishly. The corresponding sulfenamides 22 and 23 were obtained in only moderate enantiomeric excess (36-39% eel. A reaction mechanism is proposed that postulates the intermediacy of an N-Boc-substituted Fe(IV)-nitrene complex 14 acting as the imidation reagent in the catalytic cycle. Possible side reactions are discussed. The benzenesulfenamides 3 were further converted into N-Boc-N-allylamines 4 by removal of the phenylsulfanyl group. Bu3SnH in benzene was found to be the reagent of choice for the deprotection of alpha-branched amines that bear a secondary allyl substituent (five examples, 71-93% yield). This method failed for the alpha-branched amines 3i-k with a tertiary allyl substituent. The phenylsulfanyl group was finally removed with P(OEt)(3)/NEt3 in CH2Cl2 (three examples, 43-62% yield).

  DOI：

  10.1021/jo991569p
• 作为产物：
  描述：

  methyl (2S)-2-[(4-methylbenzenesulfonyl)oxy]propanoate 、 苯硫酚 在 potassium carbonate 作用下， 以 乙腈 为溶剂， 反应 120.0h， 以96%的产率得到methyl (R)-(+)-2-(phenylthio)propanoate
  参考文献：
  名称：

  Fe(II)-Catalyzed Imidation of Allyl Sulfides and Subsequent [2,3]-Sigmatropic Rearrangement. Preparation of α-Branched N-tert-Butyloxycarbonyl (Boc)-Protected N-Allylamines

  摘要：

  Allyl aryl sulfides 1 and 5 were shown to undergo an imidation/[2,3]-sigmatropic rearrangement reaction upon treatment with N-tert-butyloxycarbonyl azide (BocN(3)) and catalytic amounts of FeCl2 in CH2Cl2. The N-Boc-protected N-allyl sulfenamides 3 and 21 were obtained in yields between 48 and 75% (12 examples), Whereas the reaction is well suited for the transformation of alpha-unbranched sulfides to a-branched sulfenamides, the enantiomerically pure alpha-branched sulfides 10 and 13 reacted sluggishly. The corresponding sulfenamides 22 and 23 were obtained in only moderate enantiomeric excess (36-39% eel. A reaction mechanism is proposed that postulates the intermediacy of an N-Boc-substituted Fe(IV)-nitrene complex 14 acting as the imidation reagent in the catalytic cycle. Possible side reactions are discussed. The benzenesulfenamides 3 were further converted into N-Boc-N-allylamines 4 by removal of the phenylsulfanyl group. Bu3SnH in benzene was found to be the reagent of choice for the deprotection of alpha-branched amines that bear a secondary allyl substituent (five examples, 71-93% yield). This method failed for the alpha-branched amines 3i-k with a tertiary allyl substituent. The phenylsulfanyl group was finally removed with P(OEt)(3)/NEt3 in CH2Cl2 (three examples, 43-62% yield).

  DOI：

  10.1021/jo991569p

文献信息

• Microbial Deracemization of α-Substituted Carboxylic Acids:  Substrate Specificity and Mechanistic Investigation
  作者：Dai-ichiro Kato、Satoshi Mitsuda、Hiromichi Ohta

  DOI：10.1021/jo034253x

  日期：2003.9.1

  A new enzymatic method for the preparation of optically active alpha-substituted carboxylic acids is reported. This technique is called deracemization reaction, which provides us with a route to obtain the enantiomerically pure compounds, theoretically in 100% yield starting from the racemic mixture. This means that the synthesis of a racemate is almost equal to the synthesis of the optically active

  报道了一种用于制备旋光的α-取代的羧酸的新的酶促方法。这项技术称为脱硝反应，它为我们提供了从外消旋混合物开始，理论上以100％的收率获得对映体纯化合物的途径。这意味着外消旋体的合成几乎与旋光化合物的合成相同，并且该概念与不对称合成中通常被接受的概念完全不同。使用不断增长的诺卡氏夜蛾诺卡氏菌JCM3208的细胞系统，可以使2-芳基-和2-芳基氧基丙酸的外消旋物顺利脱硫，并以高化学收率（> 50％）回收富含（R）-形式的产物。此外，使用旋光性起始化合物和氘代衍生物以及抑制剂，
• Microbial deracemization of α-substituted carboxylic acids: control of the reaction path
  作者：Dai-ichiro Kato、Kenji Miyamoto、Hiromichi Ohta

  DOI：10.1016/j.tetasy.2004.06.049

  日期：2004.9

  A novel approach to preparing optically active alpha-substituted carboxylic acids using the whole cells of Nocardia diaphanozonaria JCM 3208 is described. When 2-phenylthiopropanoic acid and 2-methyl-3-phenylpropanoic acid were subjected to the reaction under aerobic conditions, the oxidation reaction proceeded preferentially rather than deracemization of these substrates. Herein, we report the design of reaction conditions to increase the deracemization activity in preference to oxidation reactions. In addition, we have successfully detected a metabolic intermediate in the reaction mixture of 2-methyl-3-plienylpropanoic acid, which indicates that the deracemization is a competitive reaction against the beta-oxidation pathway of fatty acid metabolism. (C) 2004 Elsevier Ltd. All rights reserved.