formamidines
formamidines
Amidines with the general formula R<small><sup>1</small></sup>N=CHNR<small><sup>2</small></sup>R<small><sup>3</small></sup> (R<small><sup>1</small></sup>, R<small><sup>2</small></sup>, R<small><sup>3</small></sup> can be H).