@article{oai:kanagawa-u.repo.nii.ac.jp:00002953, author = {佐藤, 憲一 and Sato, Ken-ichi and Kubo, Noriyuki and Takada, Ritsuko and 佐久間, 詔悟 and Sakuma, Shogo}, issue = {4}, journal = {Bulletin of the Chemical Society of Japan}, month = {}, note = {Various kinds of nonbranched and methyl-branched 6-deoxyhex-5-enopyranoside derivatives were prepared from 6-bromo-6-deoxy or 6-O-p-tolylsulfonylhexopyranoside in a one-pot procedure by a successive treatment with iodide anion and 1,8-diazabicyclo[5.4.0]undec-7-ene in dimethyl sulfoxide. The scope and limitations of this reaction have become apparent by observing the reactions of 18 substrates. The yields of altropyranoside and 2-deoxyribo-hexopyranoside derivatives were high, except for the 2,3-anhydropyranoside derivative. Methyl-branched 6-deoxyhex-5-enopyranoside derivatives were also obtained in practical yields., Article}, pages = {1156--1165}, title = {Syntheses of 6-Deoxyhex-5-enopyranosides from 6-Bromo-6-deoxy- or 6-O-p-Tolylsulfonylhexopyranosides by the Use of DBU in DMSO}, volume = {66}, year = {1993} }