5-formyl-9-methoxy-6-nitro-9-oxononyl benzoate

• 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: 5-formyl-9-methoxy-6-nitro-9-oxononyl benzoate
• 英文别名: [(5R,6S)-5-formyl-9-methoxy-6-nitro-9-oxononyl] benzoate
• 化学式: C₁₈H₂₃NO₇
• 分子量: 365.383
• InChiKey: ZBHLBJCMLVCZLB-HOTGVXAUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  26
• 可旋转键数：
  13
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  116
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  1,6-己二醇 在 4-二甲氨基吡啶 、 ammonium cerium (IV) nitrate 、 5-benzyl-2-t-butyl-3-methyl-4-oxoimidazolidinium trifluoroacetate 、 水 、 sodium 2,2,2-trifluoroacetate 、 三乙胺 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 36.5h， 生成 5-formyl-9-methoxy-6-nitro-9-oxononyl benzoate 、 5-formyl-9-methoxy-6-nitro-9-oxononyl benzoate
  参考文献：
  名称：

  Enantioselective Aldehyde α-Nitroalkylation via Oxidative Organocatalysis

  摘要：

  The first enantioselective organocatalytic alpha-nitroatkylation of aldehydes has been accomplished. The aforementioned process involves the oxidative coupling of an enamine intermediate, generated transiently via condensation of an amine catalyst with an aldehyde, with a silyl. nitronate to produce a beta-nitroaldehyde. Two methods, one that furnishes the syn beta-nitroaldehyde and a second that provides access to the anti isomer, have been developed. Data are presented to support a hypothesis that explains this phenomenon in terms of a silyl group-controlled change in mechanism. Finally, a three-step procedure for the synthesis of both syn- and anti-alpha,beta-disubstituted beta-amino acids is presented.

  DOI：

  10.1021/ja904504j

文献信息

• Enantioselective Aldehyde α-Nitroalkylation via Oxidative Organocatalysis
  作者：Jonathan E. Wilson、Anthony D. Casarez、David W. C. MacMillan

  DOI：10.1021/ja904504j

  日期：2009.8.19

  The first enantioselective organocatalytic alpha-nitroatkylation of aldehydes has been accomplished. The aforementioned process involves the oxidative coupling of an enamine intermediate, generated transiently via condensation of an amine catalyst with an aldehyde, with a silyl. nitronate to produce a beta-nitroaldehyde. Two methods, one that furnishes the syn beta-nitroaldehyde and a second that provides access to the anti isomer, have been developed. Data are presented to support a hypothesis that explains this phenomenon in terms of a silyl group-controlled change in mechanism. Finally, a three-step procedure for the synthesis of both syn- and anti-alpha,beta-disubstituted beta-amino acids is presented.