PREPARATION OF4,1',6'-TRICHLORO-4,1',6'-TRIDEOXY- GALACTOSUCROSE

PREPARATION OF4,1',6'-TRICHLORO-4,1',6'-TRIDEOXY- GALACTOSUCROSE

4,1 min ,6 min -trichloro-4,1 min ,6 min -trideoxygalactosucrose is prepared by a process including the steps of: (a) isomerising 2,3,4,3 min ,4 min -penta-O-acetyl sucrose to 2,3,6-3 min ,4 min -penta-O-acetyl sucrose; (b) chlorinating the isomerised acetate at the 4,1 min and 6 min -positions; and...

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Bibliographische Detailangaben
1. Verfasser: M.R. JENNER
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
DERIVATIVES THEREOF
METALLURGY
NUCLEIC ACIDS
NUCLEOSIDES
NUCLEOTIDES
ORGANIC CHEMISTRY
SUGARS
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Beschreibung
Zusammenfassung:4,1 min ,6 min -trichloro-4,1 min ,6 min -trideoxygalactosucrose is prepared by a process including the steps of: (a) isomerising 2,3,4,3 min ,4 min -penta-O-acetyl sucrose to 2,3,6-3 min ,4 min -penta-O-acetyl sucrose; (b) chlorinating the isomerised acetate at the 4,1 min and 6 min -positions; and (c) deacetylating the resulting chlorinated product; the isomerisation step (a) being effected by treating a solution of 2,3,4,3 min ,4 min -penta-O-acetyl sucrose in an inert solvent with a weak acid at an elevated temperature.