Transformation of D-Gulose to 1, 6-Anhydro-β-D-gulopyranose in Acid Solution1, 2

LC Stewart, NK Richtmyer

Index: Stewart; Richtmyer Journal of the American Chemical Society, 1955 , vol. 77, p. 1021,1023

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Citation Number: 36

Abstract

1, 6-Anhydro-, 9-~-gulopyranose (II).-A preliminary ex-periment with 1.1 g. of an old, impure, levorotatory D-gulose sirup showed that heating with acid, followed by treatment with alkali to destroy the unchanged sugar, and deionization, yielded a non-reducing, dextrorotatory solution; concentration of the solution left a very small amount of sirup that crystallized after several months in a desiccator. Quantitative data next were obtained by heating 20 g. of ...