中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Methyl 3,4-bis-O-(methoxymethyl)-2,6-bis-O-(p-toluenesulfonyl)-α-D-glucopyranoside | 136471-95-9 | C25H34O12S2 | 590.67 |
—— | methyl 3-O-benzoyl-2,6-di-O-tosyl-α-D-glucopyranoside | 165375-09-7 | C28H30O11S2 | 606.672 |
—— | methyl 3,4-di-O-benzoyl-2,6-di-O-tosyl-α-D-glucopyranoside | 96711-93-2 | C35H34O12S2 | 710.78 |
—— | methyl 4-O-acetyl-3-O-benzoyl-2,6-di-O-tosyl-α-D-glucopyranoside | 165375-10-0 | C30H32O12S2 | 648.709 |
—— | methyl 6-deoxy-3,4-bis(O-methoxymethyl)-2-O-(p-tolylsulfonyl)-α-D-xylo-hex-5-enopyranoside | 136471-96-0 | C18H26O9S | 418.465 |
—— | methyl 4-O-acetyl-3-O-benzoyl-6-deoxy-6-iodo-2-O-tosyl-α-D-glucopyranoside | 165375-11-1 | C23H25IO9S | 604.417 |
—— | [(2R,3S,4R)-4-acetyloxy-2-(4-methylphenyl)sulfonyloxy-1-oxohex-5-en-3-yl] benzoate | 165375-12-2 | C22H22O8S | 446.478 |
Methyl α-D-glucopyranoside is converted to methyl 6-p-toluenesulfonyl-2,3,4-tris-O-trimethylsilyl- α-D-glucopyranoside 2 and then reacted with lithium diphenylphosphide in THF. When the reaction is carried out at room tem perature and below, S-O cleavage dominates giving methyl 2,3,4-tris-O-trimethylsilyl-α-D-glucopyranoside 3 , whereas at 60°C in THF or at 35°C in diethyl ether, C-O cleavage occurs yielding the title carbohydrate-phosphine 4 in good yield after deprotection