オサゾンの化学的研究 (第2報)

Phenyl(1)-methylphenyl(2)-glucosazoneの誘導体について

抄録

By the methylation of phenylglucosazone, phenyl(1)-methylphenyl(2)-glucosazone was isolated. Condensation of acetone to the latter resulted in the bonding of acetone at C₅ and C₆, to form 5, 6-monoacetone-phenyl(1)-methylphenyl(2)-glucosazone, whose further methylation gave 3, 4-dimethyl-5, 6-monoacetone-phenyl(1)-methylphenyl(2)-glucosazone. Phenyl(1)-methylphenyl(2)-glucosazone required 3 moles of periodic acid to form 2 moles of formic acid and precipitated yellow needles of mesoxaldehyde-phenyl(1)-methylphenyl-(2)-osazone, whose color changed to blood red on irradiation of sunlight. However, the melting point of the red crystals was no different from that of the yellow one, the color being recovered on recrystallization. This change was reversible and could be repeated number of times.