(1S,2R)-trans-2-Phenylcyclohexyl 2-diazophenylacetate | 170421-70-2

• 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: (1S,2R)-trans-2-Phenylcyclohexyl 2-diazophenylacetate
• 英文别名: [(1S,2R)-2-phenylcyclohexyl] 2-diazo-2-phenylacetate
• CAS: 170421-70-2
• 化学式: C₂₀H₂₀N₂O₂
• 分子量: 320.391
• InChiKey: ZZGYQHXXTVSOLH-MSOLQXFVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  28.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (1S,2R)-trans-2-Phenylcyclohexyl 2-diazophenylacetate 、 叔丁醇 在 dirhodium tetraacetate 作用下， 以 二氯甲烷 为溶剂， 以43%的产率得到(1S,2R)-trans-2-Phenylcyclohexyl 2-tert-butoxyphenylacetate
  参考文献：
  名称：

  Diastereoselectivity in the O-H Insertion Reactions of Rhodium Carbenoids Derived from Phenyldiazoacetates of Chiral Alcohols. Preparation of .alpha.-Hydroxy and .alpha.-Alkoxy Esters

  摘要：

  A series of phenyldiazoacetates 3 derived from enantiomerically pure alcohols ((-)-borneol, (+)menthol, (-)-menthol, (-)-8-phenylmenthol, (-)-trans-2-phenylcyclohexanol, (+)-trans-2-phenyl-cyclohexanol, and (-)10-(dicyclohexylsulfamoyl)-D-isoborneol) were prepared from the corresponding alpha-keto esters 1 by way of the tosylhydrazones 2. Rhodium(II)-catalyzed decomposition of the diazoacetates 3 in the presence of water or alcohols resulted in carbenoid O-H insertion reactions to give the corresponding 2-hydroxy- or 2-alkoxyphenylacetates in good yield, but with varying degrees of diastereoselectivity. A range of rhodium(II) and other metal catalysts were investigated, with rhodium(II) acetate and rhodium(II) acetamide giving the best results. The stereochemistry of the major diastereomer was proved in most cases by independent synthesis from a mandelic acid derivative of known configuration. Possible mechanisms are discussed.

  DOI：

  10.1021/jo00119a023
• 作为产物：
  描述：

  (1S,2R)-(+)-反-2-苯基-1-环己醇 在 对甲苯磺酸 、 三乙胺 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 生成 (1S,2R)-trans-2-Phenylcyclohexyl 2-diazophenylacetate
  参考文献：
  名称：

  Diastereoselectivity in the O-H Insertion Reactions of Rhodium Carbenoids Derived from Phenyldiazoacetates of Chiral Alcohols. Preparation of .alpha.-Hydroxy and .alpha.-Alkoxy Esters

  摘要：

  A series of phenyldiazoacetates 3 derived from enantiomerically pure alcohols ((-)-borneol, (+)menthol, (-)-menthol, (-)-8-phenylmenthol, (-)-trans-2-phenylcyclohexanol, (+)-trans-2-phenyl-cyclohexanol, and (-)10-(dicyclohexylsulfamoyl)-D-isoborneol) were prepared from the corresponding alpha-keto esters 1 by way of the tosylhydrazones 2. Rhodium(II)-catalyzed decomposition of the diazoacetates 3 in the presence of water or alcohols resulted in carbenoid O-H insertion reactions to give the corresponding 2-hydroxy- or 2-alkoxyphenylacetates in good yield, but with varying degrees of diastereoselectivity. A range of rhodium(II) and other metal catalysts were investigated, with rhodium(II) acetate and rhodium(II) acetamide giving the best results. The stereochemistry of the major diastereomer was proved in most cases by independent synthesis from a mandelic acid derivative of known configuration. Possible mechanisms are discussed.

  DOI：

  10.1021/jo00119a023

文献信息

• Multicomponent Mannich Reactions with Boron Enolates Derived from Diazo Esters and 9-BBN
  作者：Yi Luan、Scott E. Schaus

  DOI：10.1021/ol200766t

  日期：2011.5.6

  3-component Mannich condensation reaction. Catalyzed by Cu(II) salts, the reaction affords the corresponding isocyanate Mannich product: one that can be easily trapped in situ by other nucleophiles. The Mannich condensation corresponds to an α,α-disubstituted enolate addition to imines. The reaction was rendered asymmetric by using the (−)-phenylmenthol ester in good yield and selectivities.

  重氮酯、芳基硼烷和氨基甲酰亚胺会发生三组分曼尼希缩合反应。在 Cu(II) 盐的催化下，该反应产生相应的异氰酸酯曼尼希产物：一种很容易被其他亲核试剂原位捕获的产物。曼尼希缩合对应于亚胺上的α,α-二取代烯醇化物加成。通过使用 (-)-苯基薄荷醇酯使反应不对称，具有良好的产率和选择性。
• Diastereoselectivity in the O-H Insertion Reactions of Rhodium Carbenoids Derived from Phenyldiazoacetates of Chiral Alcohols. Preparation of .alpha.-Hydroxy and .alpha.-Alkoxy Esters
  作者：Enrique Aller、David S. Brown、Geoffrey G. Cox、David J. Miller、Christopher J. Moody

  DOI：10.1021/jo00119a023

  日期：1995.7

  A series of phenyldiazoacetates 3 derived from enantiomerically pure alcohols ((-)-borneol, (+)menthol, (-)-menthol, (-)-8-phenylmenthol, (-)-trans-2-phenylcyclohexanol, (+)-trans-2-phenyl-cyclohexanol, and (-)10-(dicyclohexylsulfamoyl)-D-isoborneol) were prepared from the corresponding alpha-keto esters 1 by way of the tosylhydrazones 2. Rhodium(II)-catalyzed decomposition of the diazoacetates 3 in the presence of water or alcohols resulted in carbenoid O-H insertion reactions to give the corresponding 2-hydroxy- or 2-alkoxyphenylacetates in good yield, but with varying degrees of diastereoselectivity. A range of rhodium(II) and other metal catalysts were investigated, with rhodium(II) acetate and rhodium(II) acetamide giving the best results. The stereochemistry of the major diastereomer was proved in most cases by independent synthesis from a mandelic acid derivative of known configuration. Possible mechanisms are discussed.