Racemisation and rearrangement of 1,2-dihydro-1,3,5-triazines: A novel reversible thermal electrocyclic reaction
Lowe G., Carr C., Quarrell R.
Chiral 1,2-diaryl-1,2-dihydro-4,6-diamino-1,3,5-triazines undergo facile racemisation by a reversible thermal electrocyclic reaction mechanism; the transient intermediate can lead, after tautomerisation, to rearranged racemic 2-aryl-1,2-dihydro-4-amino-6-anilino-1,3,5-triazines.