Collect. Czech. Chem. Commun. 1992, 57, 565-572
https://doi.org/10.1135/cccc19920565

Side Reactions in Bromination of α-Ergocryptine

Ladislav Cvaka, Josef Stuchlíka, Magdalena Schreiberováa, Petr Sedmerab and Miroslav Fliegerb

a Galena, 747 70 Opava - Komárov
b Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20 Prague 4

Abstract

2,3-Dihydro-2-oxo-α-ergocryptine (III) and 2,3-dihydro-2-oxo-3-hydroxy-α-ergocryptine (IV) were found as the side reaction products in bromination of α-ergocryptine (I) with bromine in the presence of water. 2,3-Dihydro-2-oxo-3-ethoxy-α-ergocryptine (V) was formed in the presence of ethanol.