2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → 4-(3,5-dinitrophenyl)-9-methoxypyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

Participants

Reaction Steps

The reaction of 4-(3,5-Dinitrophenyl)-9-methoxy-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2H,3aH)-dione (IV; Ar=3,5-dinitrophenyl, R═H) (41) prepared as described in example 47 with DDQ according to the procedure described in example 70 gave 4-(3,5-dinitrophenyl)-9-methoxypyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione (V; Ar=3,5-dinitrophenyl, R10═H) (42) in a 42% yield as a reddish solid which was used without further purification.

Provenance & Evidence