Hindered rotation of unsubstituted amino groups of fluorinated ?-aminovinyl thiones

Abstract

1. The hindered rotation of the unsubstituted amino group around the N-C= bond in fluorinated β-aminovinyl thiones with a gem arrangement of the RF and NH2 groups was established. 2. The activation parameters of this process are but slightly dependent on the nature of RF and increase when two RF groups are inserted.