2-methyl-3-(3-nitrophenyl)-propionic acid methyl ester | 29417-82-1

• 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: 2-methyl-3-(3-nitrophenyl)-propionic acid methyl ester
• 英文别名: methyl 3-m-nitrophenyl-2-methylpropionate；Methyl-2-methyl-3-m-nitrophenylpropionat；(+/-)-2-Methyl-3-(3-nitro-phenyl)-propionsaeure-methylester；Methyl 2-methyl-3-(3-nitrophenyl)propanoate
• CAS: 29417-82-1
• 化学式: C₁₁H₁₃NO₄
• 分子量: 223.229
• InChiKey: VOAVCPSGTVXQSX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-methyl-3-(3-nitrophenyl)-propionic acid methyl ester 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 为溶剂， 以100%的产率得到methyl 3-aminophenyl-2-methylpropionate
  参考文献：
  名称：

  Chemoenzymatic synthesis of the enantiomers of iopanoic acid

  摘要：

  The two enantiomers of Iopanoic acid 1 were prepared in enantiomeric excess higher than 90% by enzyme-catalyzed hydrolysis of precursors (+/-)-2a and (+/-)-3a, followed by standard chemical transformations. Among the tested enzymes, chymotrypsin and Lipase PS proved to be the most selective catalysts. The stereochemical outcome of the lipase-catalyzed hydrolyses of esters (+/-)-2a-d is strictly dependent upon both the size of the alkyl group attached to the chiral center and the substituent in the aromatic ring. The enantioselectivity of the reactions was evaluated by chiral HPLC and the configurations of the new products were assigned by chemical correlations.

  DOI：

  10.1016/s0957-4166(00)86152-2
• 作为产物：
  描述：

  间硝基氯化苄 在 盐酸 、 氢氧化钾 、 sodium hydride 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 58.0h， 生成 2-methyl-3-(3-nitrophenyl)-propionic acid methyl ester
  参考文献：
  名称：

  Chemoenzymatic synthesis of the enantiomers of iopanoic acid

  摘要：

  The two enantiomers of Iopanoic acid 1 were prepared in enantiomeric excess higher than 90% by enzyme-catalyzed hydrolysis of precursors (+/-)-2a and (+/-)-3a, followed by standard chemical transformations. Among the tested enzymes, chymotrypsin and Lipase PS proved to be the most selective catalysts. The stereochemical outcome of the lipase-catalyzed hydrolyses of esters (+/-)-2a-d is strictly dependent upon both the size of the alkyl group attached to the chiral center and the substituent in the aromatic ring. The enantioselectivity of the reactions was evaluated by chiral HPLC and the configurations of the new products were assigned by chemical correlations.

  DOI：

  10.1016/s0957-4166(00)86152-2

文献信息

• NaBH₄-mediated FacileReduction of Esters of Baylis-Hillman Adducts: An EfficientApproach to Substituted Propane-1,3-Diols
  作者：Sanjay Batra、Arundhati Patra、Amiya P. Bhaduri

  DOI：10.1055/s-2003-40992

  日期：——

  Reduction of the ester group in the Baylis-Hillman adductsby NaBH4 reduction is facilitated by the secondary hydroxyl grouppresent at their β-position. This method is efficient forthe preparation of substituted propane-1,3-diols.

  通过 NaBH4 还原法还原 Baylis-Hillman 加合物中的酯基时，其 δ 位上存在的仲羟基会起到促进作用。这种方法可以有效地制备取代的丙烷-1,3-二醇。