1, 3-DIALKYL-2-IMIDAZOLIDINONE AND METHOD FOR PURIFYING THE SAME

1, 3-DIALKYL-2-IMIDAZOLIDINONE AND METHOD FOR PURIFYING THE SAME

PROBLEM TO BE SOLVED: To obtain 1, 3-dialkyl-2-imidazolidinone expressing neutral potential of hydrogen (pH) in a 50% aqueous solution. SOLUTION: The 1, 3-dialkyl-2-imidazolidinone expressing neutral pH 6-8 in the 50% aqueous solution is prepared by treating a compound expressed by general formula (...

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Bibliographische Detailangaben
Hauptverfasser: YOSHITOMI HIDETAKE, MIZUTA HIDEKI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:PROBLEM TO BE SOLVED: To obtain 1, 3-dialkyl-2-imidazolidinone expressing neutral potential of hydrogen (pH) in a 50% aqueous solution. SOLUTION: The 1, 3-dialkyl-2-imidazolidinone expressing neutral pH 6-8 in the 50% aqueous solution is prepared by treating a compound expressed by general formula (1) (wherein R expresses a 1-4C alkyl)expressing pH except 6-8 in the 50% aqueous solution with at least one species of treatments selected from the following (1) to (8): treatment with (1) an acid, subsequently an inert gas, (2) a base, (3) an ion exchange resin, (4) an inert gas, (5) an acid halogenide, (6) a carbodiimide, (7) an alcohol and (8) an aldehyde. COPYRIGHT: (C)2007,JPO&INPIT