Synthesis and application of melamine-based nano catalyst with phosphonic acid tags in the synthesis of (3´-indolyl)pyrazolo[3,4-b]pyridines via vinylogous anomeric based oxidation

1. Afsar, J.
2. Zolfigol, M.A.
3. Khazaei, A.
4. Zarei, M.
5. Gu, Y.
6. Alonso, D.A.
7. Khoshnood, A.