PROCESS FOR THE PREPARATION OF 2-HALOGENATED ERGOLINE DERIVATIVES

PROCESS FOR THE PREPARATION OF 2-HALOGENATED ERGOLINE DERIVATIVES The invention relates to a novel process for the halogenation in 2-position of ergot alkaloids. The process is characterized by that as a halogenating agent a system consisting of dimethylsulfoxide, a trialkylhalosilane or triarylhalo...

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Bibliographische Detailangaben
Hauptverfasser:	KEVE, TIBOR, MEGYERI, GABOR, SZEPESI, GABOR, KOVACS, LAJOS, JR, GAZDAG, MARIA, TRISCHLER, FERENC, STEFKO, BELA, BOGSCH, ERIK, KASSAI, ANNA NEE ZIEGER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Zusammenfassung:	PROCESS FOR THE PREPARATION OF 2-HALOGENATED ERGOLINE DERIVATIVES The invention relates to a novel process for the halogenation in 2-position of ergot alkaloids. The process is characterized by that as a halogenating agent a system consisting of dimethylsulfoxide, a trialkylhalosilane or triarylhalosilane and optionally a hydrogen halide is used. A 3999-67/MR