Process of preparing mono-O-.beta.-hydroxyethyl-7 rutoside

Details Process of preparing mono-O-.beta.-hydroxyethyl-7 rutoside Process of preparing mono-O-.beta.-hydroxyethyl-7 rutoside

1977-03-07

1979-05-08

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

424180, 536121, C07H 2300

Patent

active

041537882

ABSTRACT:
A process is provided for preparing mono-O-.beta.-hydroxyethyl-7-rutoside of the formula: ##STR1## which comprises contacting rutoside of the formula: ##STR2## in a solvent which is an at least partially aqueous medium with a boric acid alkali salt in an amount substantially not exceeding the amount necessary to form a boron complex of formula: reacting said boron complex with ethylene oxide to form a hydroxyethoxy compound of the formula ##STR3## and treating said hydroxyethoxy compound in an at least partially aqueous acid medium, whereby there is produced said mono-O-.beta.-hydroxyethyl-7-rutoside.

REFERENCES:
patent: 2450555 (1948-10-01), Koones
patent: 3305535 (1967-02-01), Merten et al.
patent: 3420815 (1969-01-01), Courbat

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