74569-80-5Relevant articles and documents
BROMINATION OF α-ERGOCRYPTINE AND OTHER ERGOT ALKALOIDS WITH 3-BROMO-6-CHLORO-2-METHYLIMIDAZO/1,2-b/PYRIDAZINE-BROMINE COMPLEX AS A NEW BROMINATING AGENT
Stanovnik, Branko,Tisler, Miha,Jurgec, Milan,Rucman, Rudolf
, p. 741 - 745 (2007/10/02)
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 81percent, is described.