TY - JOUR
T1 - Proton spin-lattice relaxation-rates and nuclear Overhauser enhancement, in relation to the stereochemistry of β-d-mannopyranose 1,2-orthoacetates
AU - Dais, Photis
AU - Shing, Tony K.M.
AU - Perlin, Arthur S.
N1 - Funding Information:
The authors express their gratitude to the Natural Sciences and Engineering Research Council for support, and to McGill University for the Harold Hibbert Fellowship (granted to P.D.).
PY - 1983/10/28
Y1 - 1983/10/28
N2 - Data are reported on spin-lattice relaxation-rates and nuclear Overhauser enhancement of protons of exo and endo diastereoisomers of 1,2-O-(1-methoxyethylidene) and 1,2-O-(1-benzyloxyethylidene) derivatives of 3,4,6-tri-O-acetyl-β-d-mannopyranose, and of some specifically deuterated analogs of these derivatives. The results verified assignments of the orientation at the quaternary carbon atom of the acetal ring, and yielded information about the orientations favored by the exocyclic C-methyl and benzyloxy substituents.
AB - Data are reported on spin-lattice relaxation-rates and nuclear Overhauser enhancement of protons of exo and endo diastereoisomers of 1,2-O-(1-methoxyethylidene) and 1,2-O-(1-benzyloxyethylidene) derivatives of 3,4,6-tri-O-acetyl-β-d-mannopyranose, and of some specifically deuterated analogs of these derivatives. The results verified assignments of the orientation at the quaternary carbon atom of the acetal ring, and yielded information about the orientations favored by the exocyclic C-methyl and benzyloxy substituents.
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U2 - 10.1016/0008-6215(83)88341-4
DO - 10.1016/0008-6215(83)88341-4
M3 - Article
AN - SCOPUS:0007652761
SN - 0008-6215
VL - 122
SP - 305
EP - 313
JO - Carbohydrate Research
JF - Carbohydrate Research
IS - 2
ER -