Thio-sugars. Part I. The thiopyranose ring

Abstract
Syntheses of 5-deoxy-5-mercapto-α-D-xylopyranose, 1,2,3,4,6-penta-O-acetyl-5-deoxy-5-mercapto-L-idopyranose, and 1,2,3,4-tetra-O-acetyl-5,6-dideoxy-5-mercapto-L-idopyranose are described. In these compounds the oxygen atom of a normal pyranose ring has been replaced by sulphur. Some attempts to obtain a 4,5-dideoxy-4,5-dimercaptopentose are outlined.

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