10382. Glycolaldehyde

Nomenclature

CAS number: 141-46-8
Hydroxyacetaldehyde; diose; 2-hydroxyethanal; glycollic aldehyde; methylolformaldehyde.
C2H4O2; mol wt 60.05.
C 40.00%, H 6.71%, O 53.29%.

Description and references

Simplest possible monosaccharide; isomer of methyl formate and acetic acid, q.q.v. Detected in interstellar space and thought to be key to the prebiotic formation of sugars and amino acids. Exists as a dimer in solid form, dissociates into the monomer in solution. Prepn from dihydroxymaleic acid: H. J. H. Fenton, H. Jackson, J. Chem. Soc. 75, 575 (1899) DOI; from divinyl ether: N. A. Milas et al., J. Am. Chem. Soc. 61, 1844 (1939) DOI; from ethylene glycol: H. Ukeda et al., Biosci. Biotechnol. Biochem. 62, 1589 (1998) DOI. Dissociation of dimer in soln: N. P. McCleland, J. Chem. Soc. 99, 1827 (1911) DOI; R. P. Bell, J. P. H. Hirst, ibid. 1939, 1777 DOI; C. I. Stassinopoulou, C. Zioudrou, Tetrahedron 28, 1257 (1972) DOI. Autocatalytic role in the production of sugars from formaldehyde (formose reaction): R. Breslow, Tetrahedron Lett. 1, No. 21, 22 (1959) DOI. Use in organic synthesis: P. Dinprasert et al., Tetrahedron Lett. 30, 1149 (1989) DOI; in polyol synthesis of silver nanostructures: S. E. Skrabalak et al., Nano Lett. 8, 2077 (2008) DOI PubMed. Role in prebiotic synthesis of amino acids: G. Zubay, Chemtracts Biochem. Mol. Biol. 10, 407 (1997); of carbohydrates: O. P. Pestunova et al. in Biosphere Origin and Evolution (Springer-Verlag, Heidelberg, 2008) pp 103-117. Detection in interstellar clouds: J. M. Hollis et al., Astrophys. J. 540, L107 (2000) DOI; outside the galactic center: M. T. Beltrán et al., ibid. 690, L93 (2009) DOI.

Chemical structure

Properties

Colorless, transparent, oblique plates with sweet taste. mp 95-97°. bp4.5 90-98°; bp12 110-120°. d100 1.366; d16 1.391. nD11 1.4811. Sol in cold water, hot alcohol; very sparingly sol in ether.

Derivative

Dimer.

Nomenclature

CAS number: 23147-58-2
1,4-Dioxane-2,5-diol; 2,5-dihydroxy-1,4-dioxane.
C4H8O4; mol wt 120.10.
C 40.00%, H 6.71%, O 53.29%.

Properties

White crystalline powder, mp 80-90°.

Use

Starting material and reagent in organic synthesis.