Synthesis of 1,4-Di- O -acetyl-2,3-dideoxy-α/β- D -pentofuranose and -pentopyranose Starting from D -mannitol, the diacetates 8 and 9 of 2,3-dideoxy- D -pentofuranose and -pentopyranose are synthesized. The 1 H-NMR and 13 C-NMR spectra of the compounds are given....
revealing that the populations of the more unstable furanose species increase with temperature, while those of pyranoses decrease. As a result, a population
Synthese von 1,4‐Di‐O‐acetyl‐2,3‐didesoxy‐α/β‐D‐pentofuranose und ‐pentopyranosedoi:10.1002/jlac.198919890296Pentofuranoses, 2,3‐dideoxyPentopyranoses, 2,3‐dideoxyElke DiekmannInstitut für Organische Chemie und Biochemie der Universität Freiburg, Albertstraße 21, D‐7800 ...
Treatment of tri- O -acetyl-l,6-anhydro-- D -galactofuranose with trifluoromethanesulfonic acid produces the acetoxonium compounds 1 and 6 and leads to the formation of 1,6-anhydro-- D -talofuranose ( 10 ) and 1,5-anhydro-- D -talofuranose (1,4-anhydro-- D -talopyranose) ( ...