On June 7, 2007, Mulvihill, Kristen Michelle; Castelhano, Arlindo L. published a patent.Category: pyrazines The title of the patent was Process for the preparation of substituted imidazo[1,5-a]pyrazines. And the patent contained the following:
The title compounds [I; X = Cl, Br, I; e.g., 3-(1-bromo-8-chloroimidazo[1,5-a]pyrazin-3-yl)cyclobutanone] are prepared by the halogenation of 3-(8-chloroimidazo[1,5-a]pyrazin-3-yl)cyclobutanone with either N-chloro-, N-bromo-, or N-iodosuccinimide (e.g., NBS) in a compatible solvent (e.g., DMF) at 0-60°. The experimental process involved the reaction of 3-(8-Chloroimidazo[1,5-a]pyrazin-3-yl)cyclobutanone(cas: 936901-72-3).Category: pyrazines
The Article related to bromochloroimidazopyrazinylcyclobutanone preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Category: pyrazines