(S)-(+)-2-methyl-2-(2,4-dichlorophenoxy)ethanol | 87810-53-5

• 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: (S)-(+)-2-methyl-2-(2,4-dichlorophenoxy)ethanol
• 英文别名: (2S)-2-(2,4-dichlorophenoxy)propan-1-ol
• CAS: 87810-53-5
• 化学式: C₉H₁₀Cl₂O₂
• 分子量: 221.083
• InChiKey: LAZNUAGYLOVVPE-LURJTMIESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,4-滴丙酸 在 Pseudomonas sp. lipase 、 硼烷 作用下， 以 四氢呋喃 、 异丙醚 为溶剂， 反应 1.83h， 生成 (S)-(+)-2-methyl-2-(2,4-dichlorophenoxy)ethanol
  参考文献：
  名称：

  Resolution of 2-aryloxy-1-propanols via lipase-catalyzed enantioselective acylation in organic media

  摘要：

  2-Aryloxy-1-propanols, primary alcohols with an oxygyen atom at the stereocenter. were resolved with good to high enantioselectivity by acylation with vinyl butanoate mediated by Pseudomonas sp. lipase in di-iso-propyl ether. Potential factors affecting the enantioselectivity of the enzymatic acylation were examined: solvents. acyl donors mid temperature, Using this enantioselective acylation procedure. enantiomeriocally pure (R)-2-(4-chlorophenoxy)-1-propanol was prepared on a grain scale. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00258-0

文献信息

• Microbial reduction and resolution of herbicidal 2-alkyl-2-aryloxyacetic acids by Gloeosporium olivarum.
  作者：YOSHIKO TSUDA、KENICHI KAWAI、SHOICHI NAKAJIMA

  DOI：10.1248/cpb.33.1955

  日期：——

  When a mold, Gloeosporium olivarum, was fermented with (±)-2-alkyl-2-aryloxyacetic acids (1-8), an enantioselective microbial reduction as well as microbial resolution took place, giving rise to (S)-2-alkyl-2-aryloxyethanols (1a-8a) and (R)-2-alkyl-2-aryloxyacetic acids (1b-8b). The configurations of the chiral 2-alkyl-2-aryloxyethanols and 2-alkyl-2-aryloxyacetic acids were consistent with those of the corresponding products formed by Glomerella cingulata, with the sole exception of 8b. The (R)-(+)-α-methoxy-α-trifluoromethylphenylacetic acid (MTPA) esters of the (S)-2-alkyl-2-aryloxyethanols showed larger lanthanide-induced shifts for the methoxy groups (1a, 4a-8a) or an aromatic proton (2a) in the nuclear magnetic resonance (NMR) spectra than the esters of the corresponding (R)-2-alkyl-2-aryloxyethanols. This result can be applied generally for the determination of the absolute configuration of 2-alkyl-2-aryloxyethanols.

  当霉菌Gloeosporium olivarum与(±)-2-烷基-2-芳氧乙酸（1-8）发酵时，发生了选择性的微生物还原和微生物分解，产生了(S)-2-烷基-2-芳氧乙醇（1a-8a）和(R)-2-烷基-2-芳氧乙酸（1b-8b）。手性2-烷基-2-芳氧乙醇和2-烷基-2-芳氧乙酸的构型与由Glomerella cingulata生成的相应产物相一致，唯一的例外是8b。 (R)-(+)-α-甲氧基-α-三氟甲基苯乙酸（MTPA）酯与(S)-2-烷基-2-芳氧乙醇在核磁共振（NMR）谱中显示出比相应的(R)-2-烷基-2-芳氧乙醇的酯对甲氧基（1a, 4a-8a）或芳香质子（2a）具有更大的镧系元素诱导位移。这一结果可普遍应用于确定2-烷基-2-芳氧乙醇的绝对构型。
• Resolution of 2-aryloxy-1-propanols via lipase-catalyzed enantioselective acylation in organic media
  作者：Toshifumi Miyazawa、Tomoyuki Yukawa、Takashi Koshiba、Hiroko Sakamoto、Shinichi Ueji、Ryoji Yanagihara、Takashi Yamada

  DOI：10.1016/s0957-4166(01)00258-0

  日期：2001.7

  2-Aryloxy-1-propanols, primary alcohols with an oxygyen atom at the stereocenter. were resolved with good to high enantioselectivity by acylation with vinyl butanoate mediated by Pseudomonas sp. lipase in di-iso-propyl ether. Potential factors affecting the enantioselectivity of the enzymatic acylation were examined: solvents. acyl donors mid temperature, Using this enantioselective acylation procedure. enantiomeriocally pure (R)-2-(4-chlorophenoxy)-1-propanol was prepared on a grain scale. (C) 2001 Elsevier Science Ltd. All rights reserved.