Carbohydrate Research p. 51 - 60 (1981)
Update date:2022-09-26
Topics:
Shaban, Mohammed A. E.
Ali, Raafat S.
El-Badry, Sousan M.
Condensation of 1-hydrazinophthalazine (hydralazine) with D-lyxose, D-ribose, D-xylose, D-mannose, and L-rhamnose gave the corresponding aldehydo-sugar phthalazin-1-ylhydrazones.D-arabinose and d-galactose, on the other hand, gave the corresponding 3-(alditol-1-yl)-1,2,4-triazolo<3,4-a>phthalazines through the autodehydrogenative cyclization of the hydrazones.A rationale for this difference is discussed.Acetylation of the latter gave the poly-O-acetyl derivatives.Catalytic, dehydrogenative cyclization with palladium-on-charcoal, or acetylation, transforms the hydrazones into the triazolophthalazines, or their acetates.The mass spectra of the synthesized compounds were discussed.
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Doi:10.1007/BF00899780
(1981)Doi:10.1021/jo00340a021
(1982)Doi:10.1016/S0040-4039(00)99931-3
(1984)Doi:10.1016/j.tet.2004.07.087
(2004)Doi:10.1021/om049417u
(2004)Doi:10.1016/S0040-4020(01)91915-5
(1983)
