(R)-N-benzyl-2-(4-chlorophenyl)-2-hydroxyacetamide

• 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: (R)-N-benzyl-2-(4-chlorophenyl)-2-hydroxyacetamide
• 英文别名: (2R)-N-benzyl-2-(4-chlorophenyl)-2-hydroxyacetamide
• 化学式: C₁₅H₁₄ClNO₂
• 分子量: 275.735
• InChiKey: XCIPCQBNKIFHJP-CQSZACIVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R)-N-benzyl-2-(4-chlorophenyl)-2-hydroxyacetamide 在 potassium carbonate 、 三乙胺 、 sodium bromide 作用下， 以 六氟苯 、 二氯甲烷 、 甲苯 为溶剂， 反应 51.0h， 生成 (R)-N-benzyl-2-(4-chlorophenyl)-2-(4-methoxy-2-methylphenyl)acetamide
  参考文献：
  名称：

  在CONH基团存在下用芳基硼酸作为亲核剂的立体定向亲核取代

  摘要：

  用芳基硼酸作为亲核试剂首次实现了立体特异性亲核取代。手性α-芳基-α-甲基化乙酰胺和芳基硼酸之间的这种无过渡金属偶联使人们能够获得一系列具有出色对映选择性和中等至良好收率的手性α，α-二芳基乙酰胺。事实证明，CONH功能对于桥接反应物和促进反应至关重要。使用此方法成功完成了大麻素CB 1受体配体，抗抑郁药（S）-双氯芬素和抑制剂implitapide的关键手性构建体的高效合成。

  DOI：

  10.1002/anie.201712829
• 作为产物：
  描述：

  4-氯苯甲酰甲酸乙酯 在 (AMPP)>2 、 氢气 作用下， 以 甲苯 为溶剂， 20.0 ℃ 、5.07 MPa 条件下， 反应 17.0h， 生成 (R)-N-benzyl-2-(4-chlorophenyl)-2-hydroxyacetamide
  参考文献：
  名称：

  Asymmetric hydrogenation of α-keto acid derivatives by rhodium-}amidophosphine-phosphinite{ catalysts

  摘要：

  The enantioselective hydrogenation of several alpha-keto esters (3a-f, 5a-j), alpha-keto amides (7a-e) and isatine derivatives (9a-d) with a set of four representative neutral homogeneous rhodium-amidophosphine-phosphinite catalysts has been investigated. Trifluoroacetato-Rh-AMPP catalytic precursors promoted the rapid, efficient synthesis of aliphatic oc-hydroxy esters 4a-f in moderate to high enantioselectivities (66-95% ee), in contrast to most aromatic alpha-hydroxy esters 6a-j (8-81% ee). Best enantioselectivities for alpha-hydroxy amides 8a-e (85-95% ee) and dioxindoles 10a-d (80-94% ee) were obtained with chloro-Rh-AMPP precursors. It is proposed that, contrary to alpha-keto amides, alpha-keto esters do not chelate onto the rhodium center and that, in such circumstances, the asymmetric induction is mainly controlled by the steric hindrance around the C=O function. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0957-4166(97)00078-5

文献信息

• Asymmetric Aerobic Oxidation of α-Hydroxy Acid Derivatives Catalyzed by Reusable, Polystyrene-Supported Chiral N-Salicylidene Oxidovanadium tert-Leucinates
  作者：Santosh B. Salunke、N.Seshu Babu、Chien-Tien Chen

  DOI：10.1002/adsc.201100062

  日期：2011.5

  The direct immobilization of two different C‐5‐propargyl ether‐modified, chiral N‐salicylidene vanadyl(V) tert‐leucinates onto 4‐azidomethyl‐substituted polystyrene by click chemistry was examined. Among the eight different solvents investigated, the resulting polystyrene‐supported catalysts promote the asymmetric, aerobic oxidation of α‐hydroxy (thio)esters and amides with enantioselectivities of

  通过点击化学方法研究了将两种不同的C-5-炔丙基醚改性的手性N-水杨基亚烷基钒（V）叔亮氨酸酯直接固定在4-叠氮基甲基取代的聚苯乙烯上的方法。在所研究的八种不同溶剂中，所得的聚苯乙烯负载催化剂促进了α-羟基（硫代）酯和酰胺的不对称，好氧氧化，其在氯仿中的对映选择性高达99％ee（选择性高达41）。这些聚苯乙烯负载的催化剂可以很容易地通过过滤回收，并至少连续四次重复使用，而不会损失反应性和对映选择性。
• Biocatalytic reduction of α-keto amides to (R)-α-hydroxy amides using Candida parapsilosis ATCC 7330
  作者：Selvaraj Stella、Anju Chadha

  DOI：10.1016/j.cattod.2012.03.081

  日期：2012.12

  Biocatalytic reduction of primary and secondary alpha-keto amides was accomplished using whole cells of Candida parapsilosis ATCC 7330. The primary (R)-alpha-hydroxy amides were obtained in good enantiomeric excess (up to 94%) and conversion (88-99%) as compared to the secondary (R)-alpha-hydroxy amides. (C) 2012 Elsevier B.V. All rights reserved.
• Asymmetric Aerobic Oxidation of α-Hydroxy Acid Derivatives by <i>C</i>₄-Symmetric, Vanadate-Centered, Tetrakisvanadyl(V) Clusters Derived from <i>N</i>-Salicylidene-α-aminocarboxylates
  作者：Chien-Tien Chen、Sampada Bettigeri、Shiue-Shien Weng、Vijay D. Pawar、Ya-Hui Lin、Cheng-Yuan Liu、Way-Zen Lee

  DOI：10.1021/jo070575f

  日期：2007.10.1

  A series of chiral vanadyl(V) methoxides bearing 3-t-butyl-5-substituted N-salicylene-L-valinate and L-t-leucinate as chiral auxiliaries has been prepared. In all cases except the 3,5-di-t-butyl analogue, they exist as monomers both in solution and in the single crystal state. In the case of the 3,5-di-t-butyl analogue, the architectural nature of the vanadyl(V) complex highly depends on the base used during the complex formation event. A pentanuclear C-4-symmetric complex was formed when potassium salts were employed instead of the corresponding sodium salts. A central vanadate(V) unit serves to grip four identical chiral monomeric vanadyl(V) units together, by which a potassium ion sits on top of the four flanking units through carbonyl coordinations and serves to hold the whole cluster by cooperation with the central vanadate(V) unit. In comparison with the corresponding monomeric vanadyl(V) methoxide complex, the cluster complex was utilized to facilitate the asymmetric aerobic oxidations of various racemic alpha-hydroxyesters, -amides, and -thioesters with excellent selectivity factors (k(rel) 40 to >500).
• Stereospecific Nucleophilic Substitution with Arylboronic Acids as Nucleophiles in the Presence of a CONH Group
  作者：Duanshuai Tian、Chengxi Li、Guoxian Gu、Henian Peng、Xumu Zhang、Wenjun Tang

  DOI：10.1002/anie.201712829

  日期：2018.6.11

  first time with arylboronic acids as nucleophiles. This transition‐metal‐free coupling between chiral α‐aryl‐α‐mesylated acetamides and arylboronic acids provided access to a series of chiral α,α‐diaryl acetamides with excellent enantioselectivity and moderate to good yields. The CONH functionality proved to be crucial for bridging the reactants and promoting the reaction. Efficient syntheses of a cannabinoid

  用芳基硼酸作为亲核试剂首次实现了立体特异性亲核取代。手性α-芳基-α-甲基化乙酰胺和芳基硼酸之间的这种无过渡金属偶联使人们能够获得一系列具有出色对映选择性和中等至良好收率的手性α，α-二芳基乙酰胺。事实证明，CONH功能对于桥接反应物和促进反应至关重要。使用此方法成功完成了大麻素CB 1受体配体，抗抑郁药（S）-双氯芬素和抑制剂implitapide的关键手性构建体的高效合成。
• Asymmetric hydrogenation of α-keto acid derivatives by rhodium-}amidophosphine-phosphinite{ catalysts
  作者：Jean-François Carpentier、André Mortreux

  DOI：10.1016/s0957-4166(97)00078-5

  日期：1997.4

  The enantioselective hydrogenation of several alpha-keto esters (3a-f, 5a-j), alpha-keto amides (7a-e) and isatine derivatives (9a-d) with a set of four representative neutral homogeneous rhodium-amidophosphine-phosphinite catalysts has been investigated. Trifluoroacetato-Rh-AMPP catalytic precursors promoted the rapid, efficient synthesis of aliphatic oc-hydroxy esters 4a-f in moderate to high enantioselectivities (66-95% ee), in contrast to most aromatic alpha-hydroxy esters 6a-j (8-81% ee). Best enantioselectivities for alpha-hydroxy amides 8a-e (85-95% ee) and dioxindoles 10a-d (80-94% ee) were obtained with chloro-Rh-AMPP precursors. It is proposed that, contrary to alpha-keto amides, alpha-keto esters do not chelate onto the rhodium center and that, in such circumstances, the asymmetric induction is mainly controlled by the steric hindrance around the C=O function. (C) 1997 Elsevier Science Ltd.