PROCESS FOR THE SEPARATION, BY COUNTERCURRENTWISE LIQUID-LIQUID EXTRACTION, OF A GLYOXAL DIACETAL FROM A CRUDE MIXTURE COMPRISING IT

Diacetals of glyoxal (I) are separated from mixtures containing (I) and the corresponding mono-acetal (II) by counter-current liquid-liquid extraction with a solvent which is immiscible in the reaction mixture, to give an upper phase containing (I). A method for separating glyoxal diacetals of formu...

Full description

Saved in:
Bibliographic Details
Main Authors SIMON OLIVIER, SCHOUTEETEN ALAIN
Format Patent
LanguageChinese
English
Published 01.09.2008
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:Diacetals of glyoxal (I) are separated from mixtures containing (I) and the corresponding mono-acetal (II) by counter-current liquid-liquid extraction with a solvent which is immiscible in the reaction mixture, to give an upper phase containing (I). A method for separating glyoxal diacetals of formula (RO) 2CH-CH(OR) 2(I) from a crude mixture containing (I) and a monoacetal of formula (II) involves counter-current liquid/liquid extraction with a solvent which is immiscible with the reaction mixture, to give an upper phase containing (I) and a lower phase containing the other components of the mixture. (RO) 2CH-CHO (II) R : 1-4C alkyl.
Bibliography:Application Number: TW200493113830