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Preparation of D-mannoheptulose

Š. Kučár, K. Linek, and Z. Novotná

Institute of Chemistry, Slovak Academy of Sciences, 809 33 Bratislava

 

Abstract: D-Manno-heptulose was prepd. by a new method via isomerization D-glycero-D-galacto-heptose with dicyclohexylcarbodiimide; the yield of D-manno-heptulose was considerably higher (∼60%) than that (∼25%) obtained by methods used so far. A relation between the transformation course of D-glycero-D-galacto-heptose and concn. of dicyclohexylcarbodiimide was found. D-glycero-D-galacto-Heptose is more advantageous as a starting material than the epimeric aldoheptose, since the enolization rate of D-glycero-D-talo-heptose is slower under the same reaction conditions.

Full paper in Portable Document Format: 355a695.pdf

 

Chemical Papers 35 (5) 695–698 (1981)

Monday, May 27, 2024

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