TY - JOUR ID - 85847 TI - Highly effectual synthesis of 4H-pyrano [2, 3-c] pyrazoles using N1, N1, N2, N2-tetramethyl-N1, N2-bis (sulfo) ethane-1, 2-diaminium trifluoroacetate as a dual-functional catalyst JO - Asian Journal of Nanoscience and Materials JA - AJNM LA - en SN - 2645-775X AU - Karami, Mostafa AU - Maghsoudi, Maryam AU - Merajoddin, Maria AU - Zare, Abdolkarim AD - Department of Chemistry, Payame Noor University, PO Box 19395-3697 Tehran, Iran Y1 - 2019 PY - 2019 VL - 2 IS - 4 SP - 413 EP - 420 KW - 4H-pyrano[2 KW - 3-c]pyrazole Protic acidic ionic liquid N1 KW - N1 KW - N2 KW - N2-tetramethyl-N1 KW - N2-bis (sulfo) ethane-1 KW - 2-diaminium trifluoroacetate ([TMBSED][TFA]2) Arylaldehyde 3-methyl-1-phenyl-1H-pyrazol-5 (4H)-one DO - 10.26655/AJNANOMAT.2019.4.4 N2 - In this research study, highly effective preparation of 4H-pyrano[2, 3-c]pyrazoles was discussed. The one-pot multi-component reaction between the malononitrile, arylaldehydes and 3-methyl-1-phenyl-1H-pyrazol-5 (4H)-one using protic acidic ionic liquid N1, N1, N2, N2-tetramethyl-N1, N2-bis (sulfo) ethane-1, 2-diaminium trifluoroacetate ([TMBSED][TFA]2) under the mild and solvent-free conditions have furnished the title compounds with high yields in short times. Additionally, an attractive mechanism considering dual-functionality of the catalyst was proposed ([TMBSED][TFA]2 with acidic and basic sites). UR - https://www.ajnanomat.com/article_85847.html L1 - https://www.ajnanomat.com/article_85847_de71a91b96f903a050a5d36d006e8385.pdf ER -