Molecular Basis of Absorption at 340 nm of 3-Ketoglucosides under Alkaline Conditions
Motomitsu Kitaoka,
Ayu Takano,
Mei Takahashi
et al.
Abstract:Transient absorption at 340 nm under alkaline conditions has long been used to detect the presence of 3-keto-O-glycosides without understanding the molecular basis of the absorbance. The time course of A340 nm for the alkaline treatment of 3-ketolevoglucosan, an intramolecular 3-keto-O-glycoside, was investigated to identify the three products generated through alkaline treatment. By comparing the spectra of these compounds under neutral and alkaline conditions, we identified 1,5-anhydro-D-erythro-hex-1-en-3-u… Show more
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