2-amino-2-methyl-3-phenylpropanoic acid hydrochloride | 14603-95-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 苯丙酸
• 英文名称: 2-amino-2-methyl-3-phenylpropanoic acid hydrochloride
• 英文别名: α-methylphenylalanine hydrochloride；2-amino-2-methyl-3-phenyl-propionic acid ; hydrochloride；2-Amino-2-methyl-3-phenyl-propionsaeure; Hydrochlorid；(2-carboxy-1-phenylpropan-2-yl)azanium;chloride
• CAS: 14603-95-3
• 化学式: C₁₀H₁₃NO₂*ClH
• 分子量: 215.68
• InChiKey: KKRHZNOGXJPKDW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.45
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  63.3
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-amino-2-methyl-3-phenylpropanoic acid tert-butyl ester 在 盐酸 作用下， 以 水 为溶剂， 反应 24.0h， 以78%的产率得到2-amino-2-methyl-3-phenylpropanoic acid hydrochloride
  参考文献：
  名称：

  Diastereoselective functionalisation of Baylis–Hillman adducts: a convenient approach to α-methyl-α-amino acids

  摘要：

  The N-tosyl carbamates 4a-e, easily prepared starting from the Baylis-Hillman adducts 3a-e, underwent cyclization carried out with I-2/NIS in the presence of NaH, to give the corresponding 2-oxo-1,3-oxazolidines 5a-e in good yield and total stereoselection when the substituent at C-5 is Ar. After the removal of tosyl group, followed by the cleavage of the heterocyclic ring, the alpha-methyl-alpha-amino acids 8a,b and 10 were obtained in good yield as hydrochlorides.

  DOI：

  10.1007/s00726-009-0465-y

文献信息

• Asymmetric alkylation catalyzed by chiral alkali metal alkoxides of TADDOL. Synthesis of α-methyl amino acids
  作者：Yu. N. Belokon、K. A. Kochetkov、T. D. Churkina、N. S. Ikonnikov、A. A. Chesnokov、O. V. Larionov、H. V. Kagan

  DOI：10.1007/bf02494637

  日期：1999.5

  enantioselective alkylation of Schiff's bases derived from alanine with reactive alkyl halides. Acid hydrolysis of the reaction products affords (R)-α-methylphenyl-alanine, (R)-α-allylalanine, and (R)-α-methylnaphthylalanine in 61–93% yields and withee 69–94%. When (S,S)-TADDOL is used, the (S)-amino acid is formed. A mechanism explaning the observed features of the reaction is proposed.

  结果表明，由 (4R,5R)-2,2-二甲基-1,3-二氧戊环-4,5-双(二苯基甲醇) ((R,R)-TADDOL) 及其一些衍生物形成的醇钠可以用作手性催化剂，用于从丙氨酸衍生的席夫碱与反应性烷基卤化物的对映选择性烷基化。反应产物的酸水解得到 (R)-α-甲基苯基-丙氨酸、(R)-α-烯丙基丙氨酸和 (R)-α-甲基萘丙氨酸，产率为 61-93%，产率为 69-94%。当使用 (S,S)-TADDOL 时，会形成 (S)-氨基酸。提出了解释观察到的反应特征的机制。
• FLUOROSULFONYL-CONTAINING COMPOUND, INTERMEDIATE THEREOF, PREPARATION METHOD THEREFOR AND USE THEREOF
  申请人：Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences

  公开号：EP3715342A1

  公开（公告）日：2020-09-30

  Disclosed in the present invention were a fluorosulfonyl-containing compound, an intermediate thereof, a preparation method therefor and use thereof. The fluorosulfonyl-containing compound disclosed in the present invention comprises a cation and an anion, the cation being as shown in Formula (1). The fluorosulfonyl-containing compound of the present invention can react with a substrate to efficiently synthesize a fluorosulfonylation product, has low toxicity, was simple to prepare, was convenient to use, and was in a solid stable state at normal temperature. Furthermore, the compound has a wide range of adaptable substrates, including phenolic compounds and amine compounds, and was the only solid form agent that can achieve such a chemical conversion, and therefore has important academic and application value.

  本发明公开了一种含氟磺酰基化合物、其中间体、制备方法及其用途。本发明公开的含氟磺酰基化合物由阳离子和阴离子组成，阳离子如式（1）所示。本发明的含氟磺酰基化合物能与底物反应，高效合成氟磺酰基化产物，毒性低，制备简单，使用方便，在常温下呈固体稳定状态。此外，本发明化合物的基质适应范围广，包括酚类化合物和胺类化合物，是目前唯一能实现这种化学转化的固态制剂，因此具有重要的学术和应用价值。
• Fluorosulfonyl-containing compound, intermediate thereof, preparation method therefor and use thereof
  申请人：SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES

  公开号：US11091442B2

  公开（公告）日：2021-08-17

  Disclosed in the present invention were a fluorosulfonyl-containing compound, an intermediate thereof, a preparation method therefor and use thereof. The fluorosulfonyl-containing compound disclosed in the present invention comprises a cation and an anion, the cation being as shown in Formula (1). The fluorosulfonyl-containing compound of the present invention can react with a substrate to efficiently synthesize a fluorosulfonylation product, has low toxicity, was simple to prepare, was convenient to use, and was in a solid stable state at normal temperature. Furthermore, the compound has a wide range of adaptable substrates, including phenolic compounds and amine compounds, and was the only solid form agent that can achieve such a chemical conversion, and therefore has important academic and application value.

  本发明公开了一种含氟磺酰基化合物、其中间体、制备方法及其用途。本发明公开的含氟磺酰基化合物由阳离子和阴离子组成，阳离子如式（1）所示。本发明的含氟磺酰基化合物能与底物反应，高效合成氟磺酰基化产物，毒性低，制备简单，使用方便，在常温下呈固体稳定状态。此外，本发明化合物的基质适应范围广，包括酚类化合物和胺类化合物，是目前唯一能实现这种化学转化的固态制剂，因此具有重要的学术和应用价值。