Method for producing 2-cyan-3-hydroxy-N-(phenyl)but-2-ene amides

The invention relates to a method for obtaining cyan-3-hydroxy-N-(phenyl)but-2-ene amide, whereby a phenyl-substituted 2-cyan-N-(phenyl)acetamide is converted in the presence of a base, acetic acid anhydride and at least one solvent, and the 2-cyan-3-hydroxy-N-(phenyl-derivative)but-2-ene amide obta...

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Bibliographische Detailangaben
Hauptverfasser: MARTIN ZAHN, WILFRIED SCHWAB, BERND NEISES, JOCHEN HACHTEL, ROLAND UTZ
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a method for obtaining cyan-3-hydroxy-N-(phenyl)but-2-ene amide, whereby a phenyl-substituted 2-cyan-N-(phenyl)acetamide is converted in the presence of a base, acetic acid anhydride and at least one solvent, and the 2-cyan-3-hydroxy-N-(phenyl-derivative)but-2-ene amide obtained is crystallised by means of acidification.