@article { author = {Ravanshad, Sharareh and Asvar, Hakimeh and Fouladi, Fatemeh and Pourkazemi, Arezoo and Shamsizadeh, Maasoomeh and Khalili, Maryam and Merajoddin, Maria and Zare, Abdolkarim}, title = {N,N,N',N'-tetramethylethylene-diaminium-N,N'-disulfonic acid chloride as a highly effective catalyst for the synthesis of 4H-pyrano[2, 3-c]pyrazoles, α-carbamatoalkyl-β-naphthols and α-amidoalkyl-β-naphthols}, journal = {Asian Journal of Green Chemistry}, volume = {4}, number = {2}, pages = {173-182}, year = {2020}, publisher = {Sami Publishing Company}, issn = {2588-5839}, eissn = {2588-4328}, doi = {10.22034/AJGC/2020.2.5}, abstract = {In this work, N,N,N',N'-tetramethylethylene-diaminium-N,N'-disulfonic acid chloride {[TMEDSA][Cl]2} has been utilized as a highly effective catalyst in order to promote the following organic transformations under green, solvent-free and mild conditions: (i) the synthesis of 4H-pyrano[2, 3-c]pyrazoles from aromatic aldehydes, 3-methyl-1-phenyl-2-pyrazolin-5-one and malononitrile, (ii) the preparation of α-carbamatoalkyl-β-naphthols from arylaldehydes, β-naphthol and alkyl carbamates, and (iii) the production of α-amidoalkyl-β-naphthols from arylaldehydes, β-naphthol and amides.}, keywords = {N,N',N'-Tetramethylethylene-diaminium-N,N'-disulfonic acid chloride {[TMEDSA][Cl]2} Sulfonic acid-functionalized ionic liquid 4H-Pyrano[2,3-c]pyrazole α-Carbamatoalkyl-β-naphthol α-Amidoalkyl-β-naphthol}, url = {https://www.ajgreenchem.com/article_87655.html}, eprint = {https://www.ajgreenchem.com/article_87655_ced3fc931aedcd763a43e04438db07ce.pdf} }