苏糖

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苏糖[1]
IUPAC名
(2S,3R)-2,3,4-Trihydroxybutanal (D)
(2R,3S)-2,3,4-Trihydroxybutanal (L)
别名 Threotetrose
识别
CAS号 95-43-2((D))
95-44-3((L))
PubChem 439665((D))
ChemSpider 388736
SMILES
InChI
InChIKey YTBSYETUWUMLBZ-QWWZWVQMBY
ChEBI 28587
性质
化学式 C4H8O4
摩尔质量 120.1 g·mol−1
外观 Syrup
溶解性 Very soluble
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

苏糖[2]英语:Threose,C4H8O4)在分类上属于丁糖醛糖,从费希尔式的角度看,中间两个碳原子上的羟基在碳骨架的异侧。

赤式和苏式[编辑]

有机化学的习惯命名法中,使用“苏”或“苏式”("threo")表示相邻两碳相同官能团在费歇尔投影式中处于异侧的构型。[3]这种命名院子苏糖的构型。相对的,两个官能团在同侧的为赤式构型("erythro")。[3][4]赤式和苏式为差向异构体

费歇尔投影式表示的两种构型的苏糖

参考文献[编辑]

  1. ^ Merck Index, 11th Edition, 9317
  2. ^ [1]
  3. ^ 3.0 3.1 Formulas Using Other Configurational Notations, W. Rausch, accessed 1 March 2011
  4. ^ Prof. Rausch helpfully notes that the prefixes "may be applied to racemic compounds, as well as pure enantiomers and meso compounds", and that when depicted in the common "zig-zag" representation, adjacent "substituents may lie on the same side of the carbon chain... [syn] or on opposite sides... [anti]", which is opposite of their depiction in a Fischer projection.