(4R,5S)-4-((R)-1-hydroxy-2,2-dimethoxyethyl)-2,2-dimethyl-1,3-dioxan-5-ol | 888487-02-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (4R,5S)-4-((R)-1-hydroxy-2,2-dimethoxyethyl)-2,2-dimethyl-1,3-dioxan-5-ol
• 英文别名: (4R,5S)-4-[(1R)-1-hydroxy-2,2-dimethoxyethyl]-2,2-dimethyl-1,3-dioxan-5-ol
• CAS: 888487-02-3
• 化学式: C₁₀H₂₀O₆
• 分子量: 236.265
• InChiKey: NWLBTQNQZGAJLS-XLPZGREQSA-N

物化性质

• 沸点：
  365.2±37.0 °C(Predicted)
• 密度：
  1.162±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  77.4
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (4R,5S)-4-((R)-1-hydroxy-2,2-dimethoxyethyl)-2,2-dimethyl-1,3-dioxan-5-ol 在 Dowex 50W₂-100 作用下， 以 水 为溶剂， 反应 6.5h， 生成 L-来苏糖
  参考文献：
  名称：

  Dihydroxyacetone Variants in the Organocatalytic Construction of Carbohydrates:  Mimicking Tagatose and Fuculose Aldolases

  摘要：

  Dihydroxyacetone variants have been explored as donors in organocatalytic aldol reactions with various aldehyde and ketone acceptors. The protected form of dihydroxyacetone that was chosen for in-depth study was 2,2-dimethyl-1,3-dioxan-5-one, 1. Among the catalysts surveyed here, proline proved to be superior in terms of yield and stereoselectivities in the construction of various carbohydrate scaffolds. In a fashion analogous to aldolase enzymes, the de novo preparation of L-ribulose, L-lyxose, D-ribose, D-tagatose, 1-amino-1-deoxy-D-lyxitol, and other carbohydrates was accomplished via the use of 1 and proline. In reactions using 2,2-dimethyl-1,3-dioxan-5-one 1 as a donor, (S)-proline can be used as a functional mimic of tagatose aldolase, whereas (R)-proline can be regarded as an organocatalytic mimic of fuculose aldolase.

  DOI：

  10.1021/jo0602017
• 作为产物：
  描述：

  2,2-二甲基-1,3-二恶烷-5-酮 在 三乙酰氧基硼氢化钠 、 溶剂黄146 、 L-脯氨酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 77.0h， 生成 (4R,5S)-4-((R)-1-hydroxy-2,2-dimethoxyethyl)-2,2-dimethyl-1,3-dioxan-5-ol
  参考文献：
  名称：

  Dihydroxyacetone Variants in the Organocatalytic Construction of Carbohydrates:  Mimicking Tagatose and Fuculose Aldolases

  摘要：

  Dihydroxyacetone variants have been explored as donors in organocatalytic aldol reactions with various aldehyde and ketone acceptors. The protected form of dihydroxyacetone that was chosen for in-depth study was 2,2-dimethyl-1,3-dioxan-5-one, 1. Among the catalysts surveyed here, proline proved to be superior in terms of yield and stereoselectivities in the construction of various carbohydrate scaffolds. In a fashion analogous to aldolase enzymes, the de novo preparation of L-ribulose, L-lyxose, D-ribose, D-tagatose, 1-amino-1-deoxy-D-lyxitol, and other carbohydrates was accomplished via the use of 1 and proline. In reactions using 2,2-dimethyl-1,3-dioxan-5-one 1 as a donor, (S)-proline can be used as a functional mimic of tagatose aldolase, whereas (R)-proline can be regarded as an organocatalytic mimic of fuculose aldolase.

  DOI：

  10.1021/jo0602017

文献信息

• Dihydroxyacetone Variants in the Organocatalytic Construction of Carbohydrates:  Mimicking Tagatose and Fuculose Aldolases
  作者：Jeff T. Suri、Susumu Mitsumori、Klaus Albertshofer、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1021/jo0602017

  日期：2006.5.1

  Dihydroxyacetone variants have been explored as donors in organocatalytic aldol reactions with various aldehyde and ketone acceptors. The protected form of dihydroxyacetone that was chosen for in-depth study was 2,2-dimethyl-1,3-dioxan-5-one, 1. Among the catalysts surveyed here, proline proved to be superior in terms of yield and stereoselectivities in the construction of various carbohydrate scaffolds. In a fashion analogous to aldolase enzymes, the de novo preparation of L-ribulose, L-lyxose, D-ribose, D-tagatose, 1-amino-1-deoxy-D-lyxitol, and other carbohydrates was accomplished via the use of 1 and proline. In reactions using 2,2-dimethyl-1,3-dioxan-5-one 1 as a donor, (S)-proline can be used as a functional mimic of tagatose aldolase, whereas (R)-proline can be regarded as an organocatalytic mimic of fuculose aldolase.