(R)-N-benzyl-2-hydroxy-2-(4'-trifluoromethylphenyl)acetamide

• 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-hydroxy-2-(4'-trifluoromethylphenyl)acetamide
• 英文别名: N-benzyl-2-hydroxy-2-(4-(trifluoromethyl)phenyl)acetamide；(2R)-N-benzyl-2-hydroxy-2-[4-(trifluoromethyl)phenyl]acetamide
• 化学式: C₁₆H₁₄F₃NO₂
• 分子量: 309.288
• InChiKey: VJQQUGCESJWVPB-CQSZACIVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (R)-N-benzyl-2-hydroxy-2-(4'-trifluoromethylphenyl)acetamide 、 叔丁氧羰酰基肌氨酸 在 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 以75%的产率得到
  参考文献：
  名称：

  Double cyclization of O-acylated hydroxyamides generates 1,6-dioxa-3,9-diazaspiro[4.4]nonanes a new class of oxy-oxazolidinones

  摘要：

  这项工作解释了一种新型杂环化合物的制备，即1,6-二氧-3,9-二氮杂螺[4.4]壬烷类化合物的合成，通过酰氧胺的环化反应以及随后的螺环化反应生成密集官能化的3-氮杂螺环醚化合物。

  DOI：

  10.1039/c6ra11604c
• 作为产物：
  描述：

  N-benzyl-2-hydroxy-2-(4'-trifluoromethylphenyl)acetamide 在 chiral vanadium(V) 氧气 作用下， 以 甲苯 为溶剂， 反应 23.0h， 以47%的产率得到(R)-N-benzyl-2-hydroxy-2-(4'-trifluoromethylphenyl)acetamide
  参考文献：
  名称：

  Asymmetric Aerobic Oxidation of α-Hydroxy Acid Derivatives by C₄-Symmetric, Vanadate-Centered, Tetrakisvanadyl(V) Clusters Derived from N-Salicylidene-α-aminocarboxylates

  摘要：

  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).

  DOI：

  10.1021/jo070575f

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。