AbstractRelatively stable equimolar adducts of 1,3,5‐trinitro‐1,3,5‐triazacyclohexane were prepared with 2,6‐lutidine‐N‐oxide, 4‐hydroxy‐1‐butanesulfonic acid δ‐sultone (1,4‐butane sultone), and 2,2,6,6‐tetramethyl‐4‐piperidone‐1‐oxyl. Only the last adduct is selective for RDX; the others also form adducts with 1,3,5,7‐tetranitro‐1,3,5,7‐tetrazacyclooctane. A very labile RDX adduct is formed with tetrahydrothiophene‐1‐oxide. Some p