- A CONVENIENT METHOD FOR THE PREPARATION OF 4,6-O-BENZYLIDENEGLYCALS FROM METHYL 2,3-ANHYDRO-4,6-O-BENZYLIDENE-α-D-HEXAPYRANOSIDES
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The reaction of methyl 2,3-anhydro-4,6-O-benzylidene-α-D-allopyranoside (1) with ethylmagnesium bromide in the presence of CuI afforded 4,6-O-benzylidene-1,2-dideoxy-D-ribo-hex-1-enopyranoside (2).Similarly, methyl 2,3-anhydro-4,6-O-benzylidene-α-D-gulopy
- Tsuda, Nobuo,Yokota, Sumio,Kudo, Takashi,Mitsunobu, Oyo
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p. 289 - 292
(2007/10/02)
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- REACTION OF 2,3-ANHYDRO-4,6-O-BENZYLIDENE-α-D-HEXOPYRANOSIDES WITH PROPENYLMAGNESIUM CHLORIDES. REGIOSELECTIVE CARBON CHAIN EXTENSION AT THE C-2 POSITION OF HEXAPYRANOSIDES
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The reaction of 2-propenylmagnesium chlorides with methyl 2,3-anhydro-4,6-O-benzylidene-α-D-allopyranoside (1) or -gulopyranoside (6) exclusively afforded the corresponding 2-deoxy-2-C-(2-propenyl)-α-D-hexopyranosides (4b, 8a, and 8b).
- Asano, Tadahiko,Yokota, Sumio,Mitsunobu, Oyo
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p. 343 - 346
(2007/10/02)
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