Preparation of 2-Amino-1,3-selenazoles by Reaction of N,N-Unsubstituted Selenoureas with a,b-Unsaturated Ketones in Alcohol

2-Dialkylamino-1,3-selenazoles were yielded by the reaction of N,N-unsubstituted selenoureas with α,β-unsaturated ketones in alcohol in the presence of ferric chloride at room temperature.