Kn. Zelenin et al., 1,2-DIAMINOETHYL-DERIVATIVES AND 1,3-DIAMINOPROPYL-DERIVATIVES OF ALDOSES AND THEIR TAUTOMERISM, Mendeleev communications, (3), 1997, pp. 111-112
2-Aminoethylimines and 3-aminopropylimines of aldoses have been synthe
sized and their structure in solutions has been investigated by C-13 N
MR spectroscopy. 2-Aminoethylimines usually exist as pyranoses, 3-amin
opropylimines are the corresponding piperimidines while ring-ring inte
rconversion between pyranose and piperimidine tautomers takes place in
some cases.