A series of allylamino-, diallylamino-, homoallylamino- and bishomoallylamino naphthoquinones
were synthesized. Ruthenium-mediated ring-closing metathesis (RCM) efficiently converted
these substrates into novel eight-, nine-, and ten-membered quinone-fused heterocycles.
Hydro-derivatives of diazacine, diazonine, and diazecine were isolated and characterized.
naphthoquinone - ring-closing metathesis - cyclization - heterocycles - diazacines
- diazecines - diazonines