2.3- Dihydroxypropanal

When solution is complete, 120 grams of 1-chloro-2,3-dihydroxypropane is slowly added. The thus provided mixture is brought to boiling and heating is continued until a temperature of 110°C is reached. 

Chemical/Physical. Hydrolysis of the epoxide ring is likely forming l-allyloxy-2,3-dihydroxypropane (Perez and Osterman-Golkar, 2000). 

Glyceraldehyde (DL-2,3-dihydroxypropanal) is readily dehydrated to pyruvaldehyde (2-oxopropanal) in aqueous solutions of hydrochloric or... 

Glyceraldehyde (2,3-dihydroxypropanal), acetol, and dihydroxyace-tone form 1-5% of biacetyl and a number of other products, including pyrocatechol and 33, after exposure to aqueous alkali at 300°. Such trioses as glyceraldehyde and dihydroxyacetone have been shown to form various hexoses by aldol reaction. Aldolization, followed by retro-aldoliza-tion, is undoubtedly a major consideration when three-, four-, and five-carbon sugars are subjected to elevated temperatures. Differences in thermolysis products, partially quantitative, are noticeable at 100°, but, at temperatures near 300°, it is quite difficult, if not impossible, to determine if the starting material was a triose, a tetrose, or a pentose. 

Scheme 7.—The Equimolar Mixture of D-Fructose and L-Sorbose Obtained from dl-2,3-Dihydroxypropanal in the Reaction Catalyzed by the Glycolysis Aldolase.

Dipolar cycloaddition of the sodium salt of cyanoacetamide or mal-ononitrile to the acetonide of racemic or optically active l-azido-2,3-dihydroxypropane 290 afforded the intermediate triazoles 291, which were converted directly to the 2-substituted 9-(2, 3 -dihydroxypropyl-8-azahypoxanthines 294 and 8-azaadenines 295 by treating with a suitable ester or nitrile to give the isopropylidene derivatives 292 and 293, respectively, followed by acid hydrolysis. The percentage of racemization was determined by NMR with the Europium shift reagent [Eu(tfc)3] (91JHC1351) (Scheme 58). 

Methyl-3-cyclo- (R )-2,3-Dihydroxypropanal 5-Isopropyl-2-methyl-hexenone (D-Glyceraldehyde) 2-cyclohexenone... 

SYNS a-CHLORHYDRlN CHLORODEOXY-GLYCEROL 1-CHLORO-2.3-DIHYDROXYPROPANE 3-CHLORO-1.2-DIHYDROXYPROPANE a-CHLOROHYDRIN l-CHLOROPROPANE-2,3-DIOL I-CHLORO-23-PROPANEDIOL 3-CHLOROPROPANE-1,2-DIOL 3-CHLORO-1.2-PROPANEDIOL 3-CHLOROPROPYLENE GYLCOL Q P, 3 -DIHYDROXY-ISOPROPYL CHLORIDE 2,3-DIHYDROXYPROPYL CHLORIDE EPIBLOC GLYCERIN-a-MONOCHLOR-HYDRIN GLYCEROL CHLOROHYDRIN GLYCEROL-a-CHLOROHYDRIN GLYCEROL-a-MONOCHLOROHYDRIN (DOT) GLYCERYL-o-CHLOROHYDRIN MONOCHLORHYDRIN MONOCHLOROHYDRIN a-MONOCHLOROHYDRIN D U-5897... 

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