PROCESS FOR PREPARING DERIVATIVES OF 2-BROM-ALPHA-ERGO-CRYPTINE

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.

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Bibliographische Detailangaben
Hauptverfasser:	GAZDAG MARIA DR.,HU, MEGYERI GABOR ,HU, TRISCHLER FERENC DR.,CS, BOGSCH ERIK ,HU, KASSAI ANNA,HU, SZEPESI GABOR ,HU, STEFKO BELA DR.,HU, KOVACS LAJOS ,HU, KEVE TIBOR DR.,HU
Format:	Patent
Sprache:	eng
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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Beschreibung
Zusammenfassung:	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.