Derivate der 3‐Desoxy‐d‐galaktofuranose

Abstract

Bei der Glykosidierung von 3-Desoxy-d-galaktose entsteht unter verschiedenen Bedingungen das Methyl-furanosid, aus dem die 5.6-Benzal-und die 2-Methyl-5.6-benzal-Verbindung in krist. Form erhalten wurden. Die Konatitutionsbeweise wurden durch Perjodatspaltung geliefert.

A new process for alkene formation. Photolysis of o-iodobiphenylyl ethers

“…After completing the study of various reaction conditions on the photolysis of 9, we selected two additional carbohydrates, l,2:5,6-di-0-isopropylidene-a-D-glucofuranose (12) and l,2:5,6-di-0-isopropylidene-a-D-allofuranose (13), for study. Compound 12 was converted to the corresponding triflate (14), a compound which was unreactive when stirred with the tetrabutylammonium salt of 2iodo-4-phenylphenol (15). Refluxing these reactants in benzene for 18 h resulted in quantitative conversion to a new carbohydrate, one which contained no aromatic group.…”