Process for the preparation of arlazotetronic acid derivatives

Process for the preparation of arlazotetronic acid derivatives

A process for the preparation of arylazotetronic acid derivatives of the general formula: I in which a 3-chloro-4-hydroxy-2(5H)-furanone of the formula: II is diazotized. The arylazotetronic acid derivatives are important intermediates in the preparation of (+)-biotin. A process for the preparation...

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Bibliographische Detailangaben
Hauptverfasser: SCHROER, JOSEF
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:A process for the preparation of arylazotetronic acid derivatives of the general formula: I in which a 3-chloro-4-hydroxy-2(5H)-furanone of the formula: II is diazotized. The arylazotetronic acid derivatives are important intermediates in the preparation of (+)-biotin. A process for the preparation of arylazotetronic acid derivatives of the general formula: of the formula: II is diazotized. The arylazotetronic acid derivatives are important intermediates in the preparation of (+)-biotin.