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An Efficient Four‐component Synthesis of Spiro[indoline‐pyrazolo[4′,3′:5,6]pyrido[2,3‐d]pyrimidine]triones |
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| Authors: | Ramin Ghahremanzadeh Mojtaba Mirhosseini Moghaddam Ayoob Bazgir Mohammad Mehdic Akhondi |
| Affiliation: | 1. Nanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran;2. Department of Chemistry, Shahid Beheshti University, G.C., P.O. Box 19396‐4716, Tehran, Iran |
| Abstract: | A four‐component reaction in the presence of Alum [KAl(SO4)2·12H2O] as an inexpensive and reusable catalyst using the ionic liquid as an effective green reaction media is reported. |
| Keywords: | catalysis condensation cyclization green chemistry ionic liquids multicomponent reaction spiro compounds |