cinnolines meaning in Hindi

In addition to the rich chemistry of the Beirut reaction, Professor Haddadin did original work in the areas of Isobenzofuran, Isoindoles, tetrazines, quinolines, furans, pyrroles, cinnolines and indazoles.
A classic organic reaction for synthesizing cinnolines is the "'Widman Stoermer synthesis "', a ring-closing reaction of an ?-vinyl-aniline with hydrochloric acid and sodium nitrite: