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Communication | Regular issue | Vol 16, No. 5, 1981, pp.741-745
Published online, 1st January, 1970
DOI: 10.3987/R-1981-05-0741
Bromination of α-Ergocryptine and Other Ergot Alkaloids with 3-Bromo-6-chloro-2-methylimidazo[1,2-b]pyrimidazine-Bromine Complex as a New Brominating Agent

Branko Stanovnik,* Miha Tisler, Milan Jurgec, and Rudolf Rucman

*Department of Chemistry , E. Kardelj University, Murnikova 6, 61000 Ljubljana, Yugoslavia

Abstract

A new and improved bromination of α-ergocryptine and some other ergot alkaloids of the type 1, 2, and 3 using 3-bromo-6-chloro-2-methylimidazo[1,2-b]pyridazine-bromine complex (5) as a new brominating agent, to give purified 2-bromo derivatives in yields up to 81%, is described.