CRYSTALLIZATION OF 2-AZABICYCLO(2.2.1)HEPT-5-EN-3-ONE

CRYSTALLIZATION OF 2-AZABICYCLO(2.2.1)HEPT-5-EN-3-ONE

PROBLEM TO BE SOLVED: To provide a method for preparing, with a simple operation in high recovery rate, the microparticulate crystal of the subject compound which is excellent in fluidity and handleability. SOLUTION: This method of crystallizing the subject compound comprises dissolving 2-azabicyclo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IGARASHI RENSUKE, FUKUMOTO TAKASHI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for preparing, with a simple operation in high recovery rate, the microparticulate crystal of the subject compound which is excellent in fluidity and handleability. SOLUTION: This method of crystallizing the subject compound comprises dissolving 2-azabicyclo[2.2.1]hept-5-en-3-one in an organic solvent consisting mainly of diisopropyl ether and/or methyl-t-butyl ether to prepare an organic solvent solution, and cooling the solution to deposit the aimed crystal of the subject compound.