Abstract
A ready one-pot preparation for 6-amino-4-chloro-5-cyano-2-dimethylaminopyrimidine (3), 4-chloro-5-cyano-2-dimethylamino-6-(dimethylamino-chloro)azomethinopyrimidine (4) and their derivatives from 1,1-diamino-2,2-dicyanoethylene and dichloromethylenedimethyliminium chloride (phosgeneiminium chloride) is reported.
Dedicated Professor Horst Prinzbach, Freiburg/B on the occasion of his 65th birthday with best wishes
Notes
Dedicated Professor Horst Prinzbach, Freiburg/B on the occasion of his 65th birthday with best wishes