Indazole condensed heterocycles

This book includes three chapters (from chapter III-V). Chapter I and II are already published under the title “An overview of indazoles and its synthetic intermediates”.Chapter III describes the synthesis of pyrazolo and isoxazolo fused derivatives of 789-trihydropyrazolo[45-b]carbazol-6(3H)-one and 9-benzyl-78-dihydropyrazolo[45-b]azacarbazol 6(3H)-one. Chapter IV is concerned with the synthesis of pyrimidine ring incorporated derivatives of 78 9-trihydropyrazolo[45-b]carbazol-6(3H)-one from oxo-ketenedithioacetals chalcones dimethylamino methylene ketones and enolic ethers of carbazole annulated pyrazoles. Chapter V is related with the synthesis of benzodiazepino benzothiazepino and quinolino condensed 789-trihydropyrazolo[45 b]carbazol-6(3H)-one and 9-benzyl 78-dihydropyrazolo[4 5-b]-9-azacarbazol-6(3H)-one from oxo-ketenedithioacetals and chalcones derived from carbazolo annulated pyrazole and azacarbazolo annulated carbazole.