中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 6-O-allyl-1',2,3,3',4,4'-hexa-O-benzylsucrose | 900525-79-3 | C57H62O11 | 923.113 |
—— | 1',2,3,3',4,4'-hexa-O-benzylsucrose | 74761-34-5 | C54H58O11 | 883.048 |
—— | 6-O-allyl-1',2,3,3',4,4'-hexa-O-benzyl-6'-O-tert-butyldiphenylsilylsucrose | 900525-76-0 | C73H80O11Si | 1161.52 |
—— | 1',2,3,3',4,4'-hexa-O-benzyl-6'-O-tert-butyldiphenylsilylsucrose | 900525-72-6 | C70H76O11Si | 1121.45 |
The first C2 symmetrical macrocyclic receptor containing two sucrose molecules has been prepared, albeit in low yield, by reaction of hexa-O-benzyl-6′-O-acroyl-6-O-allylsucrose in the presence of a second generation Grubbs catalyst (1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ruthenium alkylidene complex). Highly selective protection of the 6′-OH group in 1′,2,3,3′,4,4′-hexa-O-benzylsucrose was a key step in the preparation of the precursor used under ring closing metathesis (RCM) conditions.Key words: sucrose, macrocyclic receptors, metathesis, regioselective transformations.