2-hydroxybutanal | 117706-94-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-hydroxybutanal
• 英文别名: (2R)-2-hydroxybutanal
• CAS: 117706-94-2
• 化学式: C₄H₈O₂
• 分子量: 88.1063
• InChiKey: UIKQNMXWCYQNCS-SCSAIBSYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  6
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-hydroxybutanal 、 乙醛 在 乙二胺四乙酸 作用下， 以 水 为溶剂， 反应 48.0h， 以18%的产率得到2,5,6-trideoxy-D-erythro-hexofuranose
  参考文献：
  名称：

  Deoxyribose 5-phosphate aldolase as a catalyst in asymmetric aldol condensation

  摘要：

  This paper describes the substrate specificity and synthetic utility of deoxyribose-5-phosphate aldolase (DERA, EC 4.1.2.4). Eight donors and 20 acceptors have been tested as substrates. In addition to acetaldehyde, propanal, acetone, and fluoroacetone have been used to condense with a number of acceptor aldehydes. Thirteen aldol products have been prepared and characterized. A new stereogenic center with 3(S) configuration is formed when acetaldehyde, fluoroacetone, or acetone is used as a donor substrate. With propanal, two new stereogenic centers are formed with 2(R) and 3(S) configurations. The acceptor substrates have very little structural requirements. The 2-hydroxyaldehydes appear to react the fastest, and the D-isomers are better substrates than the L-isomers. The stereospecificity is absolute regardless of the chirality of 2-hydroxyaldehydes. The aldol reactions thus follow the Cram-Felkin mode of attack for D-substrates and anti-Cram-Felkin mode of attack for L-substrates.

  DOI：

  10.1021/ja00028a050
• 作为产物：
  描述：

  (R)-2-羟基丁酸甲酯 在 二异丁基氢化铝 作用下， 以 甲苯 为溶剂， 反应 2.0h， 生成 2-hydroxybutanal
  参考文献：
  名称：

  实用的一锅式邻位和1,3-二醇立体定向制剂

  摘要：

  已经开发了一种容易的一锅合成方法，该方法可从市售对映纯羟基酯中以95％的立体异构体纯度提供邻位二醇和1,3-二醇。用DIBALH还原该酯，并用4-戊烯基溴化镁原位烷基化，在后处理后产生标题二醇，为非对映体对。这些对易于通过制备色谱分离，从起始原料中获得具有保留的立体异构体纯度的产物。该方法代表了许多普通天然产物的方便制备方法，例如cerambycid甲虫信息素和向双环缩醛树皮甲虫信息素的中间体。

  DOI：

  10.1016/j.tetlet.2016.11.101

文献信息

• Deoxyribose 5-phosphate aldolase as a catalyst in asymmetric aldol condensation
  作者：Lihren Chen、David P. Dumas、Chi Huey Wong

  DOI：10.1021/ja00028a050

  日期：1992.1

  This paper describes the substrate specificity and synthetic utility of deoxyribose-5-phosphate aldolase (DERA, EC 4.1.2.4). Eight donors and 20 acceptors have been tested as substrates. In addition to acetaldehyde, propanal, acetone, and fluoroacetone have been used to condense with a number of acceptor aldehydes. Thirteen aldol products have been prepared and characterized. A new stereogenic center with 3(S) configuration is formed when acetaldehyde, fluoroacetone, or acetone is used as a donor substrate. With propanal, two new stereogenic centers are formed with 2(R) and 3(S) configurations. The acceptor substrates have very little structural requirements. The 2-hydroxyaldehydes appear to react the fastest, and the D-isomers are better substrates than the L-isomers. The stereospecificity is absolute regardless of the chirality of 2-hydroxyaldehydes. The aldol reactions thus follow the Cram-Felkin mode of attack for D-substrates and anti-Cram-Felkin mode of attack for L-substrates.
• Practical one-pot stereospecific preparation of vicinal and 1,3-diols
  作者：Bjorn Bohman、Gavin R. Flematti、C. Rikard Unelius

  DOI：10.1016/j.tetlet.2016.11.101

  日期：2017.1

  A facile one-pot synthesis providing vicinal diols and 1,3-diols in >95% stereoisomeric purity from commercially available enantiopure hydroxy esters has been developed. The esters were reduced with DIBALH and alkylated in situ with 4-pentenylmagnesium bromide, which after workup generated the title diols as diastereomeric pairs. These pairs were easily separated by preparative chromatography, affording

  已经开发了一种容易的一锅合成方法，该方法可从市售对映纯羟基酯中以95％的立体异构体纯度提供邻位二醇和1,3-二醇。用DIBALH还原该酯，并用4-戊烯基溴化镁原位烷基化，在后处理后产生标题二醇，为非对映体对。这些对易于通过制备色谱分离，从起始原料中获得具有保留的立体异构体纯度的产物。该方法代表了许多普通天然产物的方便制备方法，例如cerambycid甲虫信息素和向双环缩醛树皮甲虫信息素的中间体。