Process of preparing mono-o-.beta.-hydroxy-ethyl-7 rutoside

Details Process of preparing mono-o-.beta.-hydroxy-ethyl-7 rutoside Process of preparing mono-o-.beta.-hydroxy-ethyl-7 rutoside

C - Chemistry, Metallurgy

07

H

260/233

C07H 15/26 (2006.01) C07H 17/07 (2006.01)

Patent

CA 1039717

A Process of Preparing mono-O-.beta.-hydroxyehtyl- -7 rutoside Abstract of the Disclosure Mono-O-.beta.-hydroxyethyl-7 rutoside is prepared by reacting ethylene oxide in an aqueous, partially aqueous or organic polar solvent with a rutoside complex whose ortho-diphenyl group of the B ring is blocked by a complexing agent, e.g, boron or boric acid. The reaction temperature is preferably from 30 to 40° C, The OH phenolic complexes are then freed by hydrolysis. -o O o - - 1 -

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