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Novartis AG
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JR Geigy AG
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Publication of ES230930A1publicationCriticalpatent/ES230930A1/es
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
Procedimiento para la preparación de 1,2-difenil-4-n-butil-3,5-dioxo-pirazolidina, caracterizado porque se reduce 1,2-difenil-4-butiril-3,5-dioxo-pirazolidina según Wolff-Kishner, por transformación en la hidrazona o semicarbazona y desintegración de la misma mediante hidróxido o alcoholato alcalino a temperatura aumentada.
ES0230930A1955-09-161956-09-15PROCEDIMIENTO PARA LA PREPARACIoN DE 1,2-DIFENIL-4-N-BUTIL-3,5-DIOXO-PIRAZOLIDINA
ExpiredES230930A1
(es)