(E)-1,3,4-trideoxy-5,6:7,9-di-O-isopropylidene-α-L-xylo-non-3-ene-2,5-diulo-5,8-furanose

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-1,3,4-trideoxy-5,6:7,9-di-O-isopropylidene-α-L-xylo-non-3-ene-2,5-diulo-5,8-furanose
• 英文别名: (E)-4-[(1R,2S,6S,8S)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[6.4.0.02,6]dodecan-6-yl]but-3-en-2-one
• 化学式: C₁₅H₂₂O₆
• 分子量: 298.336
• InChiKey: QUYJKHLKFBCECB-PQHHEGLISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  63.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  双丙酮-L-山梨糖 在 N-甲基吲哚酮 、 四丙基高钌酸铵 、 4 Angstroem MS 、 L-脯氨酸 作用下， 以 二氯甲烷 、 二甲基亚砜 为溶剂， 反应 36.0h， 生成 (E)-1,3,4-trideoxy-5,6:7,9-di-O-isopropylidene-α-L-xylo-non-3-ene-2,5-diulo-5,8-furanose
  参考文献：
  名称：

  Highly stereocontrolled alkylation of protected ‘diacetone hexulose aldehydes’

  摘要：

  Claisen Schmidt aldol condensation (with acetone, catalysed by L- and D-proline), Knoevenagel reaction with acetoacetic acid and the modified Reformatsky reaction with bromoacetone of the 'diacetone hexulose aldehydes' 2 and 7 gave the corresponding beta -hydroxyketones 3 4 and 8-9 as well as the (E)-alpha,beta -enones 5 and 10, respectively. The highest chemo- and stereoselectivities were obtained with the Knoevenagel procedure using L-proline as the catalyst. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00488-8

文献信息

• Highly stereocontrolled alkylation of protected ‘diacetone hexulose aldehydes’
  作者：Isidoro Izquierdo、Marı́a T. Plaza、Rafael Robles、Antonio J. Mota、Francisco Franco

  DOI：10.1016/s0957-4166(01)00488-8

  日期：2001.10

  Claisen Schmidt aldol condensation (with acetone, catalysed by L- and D-proline), Knoevenagel reaction with acetoacetic acid and the modified Reformatsky reaction with bromoacetone of the 'diacetone hexulose aldehydes' 2 and 7 gave the corresponding beta -hydroxyketones 3 4 and 8-9 as well as the (E)-alpha,beta -enones 5 and 10, respectively. The highest chemo- and stereoselectivities were obtained with the Knoevenagel procedure using L-proline as the catalyst. (C) 2001 Elsevier Science Ltd. All rights reserved.