Carbohydrate Research

Reaction of d-mannose arylhydrazones with dimethyl acetylenedicarboxylate: Synthesis of pentahydroxypentylpyrazoles

MG Guillén, LMV de Miguel, JV Jiménez

Index: Guillen, Manuel Gomez; Miguel, Luis M. Vazquez de; Jimenez, Jose Velazquez Carbohydrate Research, 1982 , vol. 108, p. 51 - 58

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Citation Number: 2

Abstract

Abstract The reactions of d-mannose arylhydrazones with dimethyl acetylenedicarboxylate under acidic conditions afforded the respective pentahydroxypentylpyrazoles. With the phenyl-and p-tolyl-hydrazones, the respective enehydrazones were also obtained. The new pyrazole derivatives gave penta-acetates and oxidation with sodium periodate gave pyrazole-3-carbaldehydes. The 1 Hn. mr coupling constants of the penta-acetates ...