1. The ability of diorganylboryl-[1-(N-organyl)carbamoylpyrid-2-one-iminates] (III) to undergo thermal isomerization into N-diorganylboryl-[2-(N-organyl)carbamoylaminopyridinates] (II) was discovered. 2. On heating, 2-diorganylborylaminopyridines can add to isocyanates at the C=O group to form O-diorganylboryl-[2-(N-organyl)carbamoylaminopyridinates] (I).