2-methyl-3-phenylpropionic acid | 14367-67-0

• 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-methyl-3-phenylpropionic acid
• 英文别名: (R)-2-methyl-3-phenylpropionic acid；(2R)-2-methyl-3-phenylpropanoic acid
• CAS: 14367-67-0
• 化学式: C₁₀H₁₂O₂
• mdl: MFCD20638189
• 分子量: 164.204
• InChiKey: MCIIDRLDHRQKPH-MRVPVSSYSA-N

物化性质

• 沸点：
  122 °C
• 密度：
  1.0621 g/cm3(Temp: 25 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  12
• 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：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-methyl-3-phenylpropionic acid 在 2,6-二甲基吡啶 、 4-二甲氨基吡啶 、 dimethyl sulfide borane 、 chiral oxazaborolidine (S config.) 、 水 、 potassium carbonate 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 52.25h， 生成 tert-butyl-dimethyl-[(3S,4R)-4-methyl-5-phenylpent-1-yn-3-yl]oxysilane
  参考文献：
  名称：

  Zaragozic酸A和C的C-1烷基侧链的合成

  摘要：

  报道了从常见手性前体4不对称合成Zaragozic酸A和C的C-1烷基侧链。不饱和酮8和10的立体选择性还原是两种合成的关键步骤。

  DOI：

  10.1016/s0040-4039(98)01421-x
• 作为产物：
  描述：

  2-甲基-3-苯基丙烯酸 在 bis(norbornadiene)rhodium(l)tetrafluoroborate 、 (Sp)-2-[(R)-1-diphenylphosphinoethyl]-(Sp)-2″-diphenylphosphino-1,1″-biferrocene 、 氢气 作用下， 以 甲醇 为溶剂， 20.0 ℃ 、5.0 MPa 条件下， 反应 20.0h， 以92% ee的产率得到
  参考文献：
  名称：

  Walphos versus Biferrocene-Based Walphos Analogues in the Asymmetric Hydrogenation of Alkenes and Ketones

  摘要：

  Two representative Walphos analogues with an achiral 2,2 ''-biferrocenediyl backbone were synthesized. These diphosphine ligands were tested in the rhodium-catalyzed asymmetric hydrogenation of several alkenes and in the ruthenium-catalyzed hydrogenation of two ketones. The results were compared with those previously obtained on using biferrocene ligands with a C-2-symmetric 2,2 ''-biferrocenediyl backbone as well as with those obtained with Walphos ligands. The application of one newly synthesized ligand in the hydrogenation of 2-methylcinnamic acid gave (R)-2-methyl-3-phenylpropanoic acid with full conversion and with 92% ee. The same ligand was used to transform 2,4-pentanedione quantitatively and diastereoselectively into (S,S)-2,4-pentanediol with 98% ee.

  DOI：

  10.1021/om401074a

文献信息

• Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates
  作者：Qihang Guo、Xiang Ren、Zhan Lu

  DOI：10.1021/acs.orglett.8b03299

  日期：2019.2.15

  catalyst-controlled intramolecular unactivated C(sp3)-H amination and oxygenation of carbamates merging visible-light photocatalysis and earth-abundant transition metal catalysis have been reported. Useful amino alcohol and diol derivatives could be selectively obtained from readily available tertiary alcohol derivatives. The possible mechanisms have been proposed via a 1,5-HAT process followed by Lewis acid-controlled

  双重控制的分子内未活化的C（sp 3）-H氨基化和氨基甲酸酯的氧合将可见光光催化和地球过渡金属催化结合在一起的报道。有用的氨基醇和二醇衍生物可以从容易获得的叔醇衍生物中选择性地获得。已经通过1，5-HAT方法，接着路易斯酸控制的环化，提出了可能的机理。镍和锌催化剂分别抑制氧合和胺化产物的形成。还观察到有趣的手性转移现象。
• [EN] TRIAZOLE AGONISTS OF THE APJ RECEPTOR<br/>[FR] TRIAZOLES AGONISTES DU RÉCEPTEUR APJ
  申请人：AMGEN INC

  公开号：WO2016187308A1

  公开（公告）日：2016-11-24

  Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures where the definitions of the variables are provided herein.

  公式I和公式II的化合物，其药用盐，上述任何一种的立体异构体，或它们的混合物是APJ受体的激动剂，并可用于治疗心血管和其他疾病。公式I和公式II的化合物具有以下结构，其中变量的定义在此提供。
• Enantioselective Hydrogenation of α-Substituted Acrylic Acids Catalyzed by Iridium Complexes with Chiral Spiro Aminophosphine Ligands
  作者：Shou-Fei Zhu、Yan-Bo Yu、Shen Li、Li-Xin Wang、Qi-Lin Zhou

  DOI：10.1002/anie.201204363

  日期：2012.8.27

  Highly active: Iridium complexes with chiral spiro aminophosphine ligands were synthesized and applied as catalysts for the asymmetric hydrogenation of α‐substituted acrylic acids (see scheme). The complexes were highly active catalysts, showing turnover frequencies of up to 6000 h−1, and catalyst loadings could be reduced to 0.01 mol %.

  高活性：与手性螺环氨基膦配体的铱络合物的合成和作为催化剂用于α-取代的丙烯酸的不对称氢化（参见方案）施用。该复合物具有高活性的催化剂，显示出6000 h最多的周转频率-1，并且催化剂载量可减少到0.01％（摩尔）。
• Asymmetric Hydrogenation of α,β-Unsaturated Carboxylic Acids Catalyzed by Ruthenium(II) Complexes of Spirobifluorene Diphosphine (SFDP) Ligands
  作者：Xu Cheng、Jian-Hua Xie、Sheng Li、Qi-Lin Zhou

  DOI：10.1002/adsc.200606065

  日期：2006.7

  The ruthenium diacetate complexes ligated by chiral spirobifluorene diphosphines (SFDP) were very effective catalysts for the asymmetric hydrogenation of tiglic acid derivatives and α-methylcinnamic acid derivatives with high activities and excellent enantioselectivities (up to 98 % ee). The α-aryloxybutenoic acids can also be hydrogenated by these catalysts to provide the corresponding saturated α-aryloxybutanoic

  由手性螺二芴二膦（SFDP）连接的二乙酸钌络合物是非常有效的催化剂，用于对酸衍生物和α-甲基肉桂酸衍生物进行不对称氢化，具有高活性和出色的对映选择性（最高98％ee）。这些催化剂还可以将α-芳氧基丁烯酸加氢，以提供相应的饱和α-芳氧基丁酸，以高收率（89-93％）和对映选择性（高达95％ee）提供。在该反应中，配体SFDP与对位上的甲基团P -苯基环，得到最好的结果。
• Highly Efficient Asymmetric Hydrogenation of α,β-Unsaturated Carboxylic Acids Catalyzed by Ruthenium(II)-Dipyridylphosphine Complexes
  作者：Liqin Qiu、Yue-Ming Li、Fuk Yee Kwong、Wing-Yiu Yu、Qing-Hua Fan、Albert S. C. Chan

  DOI：10.1002/adsc.200600410

  日期：2007.3.5

  P-Phos and Xyl-P-Phos were applied in the asymmetric hydrogenation of α,β-unsaturated carboxylic acids. The cationic complexes [RuL(benzene)Cl]Cl were found to be superior to the corresponding neutral complex Ru(OCOCH3)2L in this type of reactions. The catalysts exhibited excellent activities and enantioselectivities (up to 97 % ee) in the asymmetric hydrogenation.

  具有二吡啶基膦配体P-Phos和Xyl-P-Phos的两种催化剂[RuL（苯）Cl] Cl和Ru（OCOCH 3）2 L被用于α，β-不饱和羧酸的不对称氢化。该阳离子配合物[RUL（苯）CL]氯被认为是优于相应的中性配合物的Ru（OCOCH 3）2 L的这种类型的反应。该催化剂在不对称氢化中表现出出色的活性和对映选择性（最高97％ee）。