@article { author = {}, title = {STEREOSELECTIVE SYNTHESIS OF METHYL TETRA-0-METHYL a-AND P-D-GLUCO-AND MANNOPYRANOSIDES}, journal = {Journal of Sciences, Islamic Republic of Iran}, volume = {3}, number = {1}, pages = {-}, year = {1992}, publisher = {University of Tehran}, issn = {1016-1104}, eissn = {2345-6914}, doi = {}, abstract = {Methyl tetra - 0-methyl- ?-D- glucopyranoside is stereoselectively prepared from tetramethyl-D- glucopyranose by using (MeI+NaH) in toluene (86%) or cyclohexane (85%), while its ?- isomer is best synthesized in hexamethyl phosphoramide (64%). Similarly, methyl tetra-o-methyl-?- D-mannopyranoside is synthesized in cyclohexane (80%), while its ?- isomer is predominantly prepared by (MeI+n-BuLi) in cyclohexane (98%). The ?-and ?- isomers of these glycosides were identified and quantified by G.C}, keywords = {}, url = {https://jsciences.ut.ac.ir/article_31201.html}, eprint = {https://jsciences.ut.ac.ir/article_31201_d9336c74c284aaa7a8e5b78a95096779.pdf} }