Molecular Diversity of Three‐Component Reaction of β‐Enamino Imide,Malononitrile and Cyclic α‐Diketones |
| |
Abstract: | The base promoted three‐component reaction of β‐ enamino imide, malononitrile and various cyclic α‐ diketones in acetonitrile showed interesting molecular diversity. The reactions with acenaphthylene‐1,2‐dione and ninhydrin afforded functionalized spiro[indene‐2,4'‐pyrrolo[3,4‐b ]pyridines] and spiro[acenaphthylene‐1,4'‐pyrrolo[3,4‐b ]pyridines] in good yields. The similar reaction of phenanthrene‐9,10‐dione resulted in the formation of the unexpected complex phenanthro[9',10':4,5]furo[2,3‐c ]pyrrolo[3,4‐b ]pyrroles in satisfactory yields. |
| |
Keywords: | multicomponent reaction β ‐enamino imide spiro compound ninhydrin phenanthrene‐9,10‐dione |
|
|