| Autor: |
Sato, Ken-ichi, Kubo, Noriyuki, Takada, Ritsuko, Sakuma, Shogo |
| Zdroj: |
Bulletin of the Chemical Society of Japan; April 1993, Vol. 66 Issue: 4 p1156-1165, 10p |
| Abstrakt: |
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. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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