Corioseおよび関連化合物の研究(第4報) : 3-Heptuloseの呈色反応とペーパーおよびガスクロマトグラフィー

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Color reactions of coriose (D-altro-3-heptulose) (I) and D-manno-3-heptulose (II) in the test tube and on the filter paper, as summarized in Tables I and II, are common to these two 3-heptuloses, and significantly differ from that of other monosaccharides. The absorption maxima of the colored solutions are also in agreement with the above observations. The Rf values of I and II on paper-partition chromatography by the ascending method using five kinds of developing solvent mixtures are shown in Table III. The gas-liquid chromatography of coriose shows that the initial trimethylsilyl ether produced immediately on the addition of the reagent mixture is converted in the presence of excess reagent mixture into two other products of longer retention time. This two-step trimethylsilylation is useful for the detection and identification of coriose by gas chromatography since coriose-containing syrup also shows transformation of peaks including these three peaks. D-manno-3-Heptulose shows slow transformation of the initial trimethylsilyl ether into the mixture of final products which exhibit three peaks on gas chromatogram. These transformations of the trimethylsilyl ethers of 3-heptuloses are retarded when trimethylsilylation is done at lower temperature, or with limited amount of the reagent. Gas chromatography of trimethylsilyl ethers of three heptitols, volemitol (V), D-glycero-D-altro-heptitol (VI), and perseitol (VII) was also carried out.
公益社団法人日本薬学会の論文
1969-10-25

Corioseおよび関連化合物の研究(第4報) : 3-Heptuloseの呈色反応とペーパーおよびガスクロマトグラフィー

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