%0 Journal Article %T 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 %J Asian Journal of Green Chemistry %I Sami Publishing Company %Z 2588-5839 %A Ravanshad, Sharareh %A Asvar, Hakimeh %A Fouladi, Fatemeh %A Pourkazemi, Arezoo %A Shamsizadeh, Maasoomeh %A Khalili, Maryam %A Merajoddin, Maria %A Zare, Abdolkarim %D 2020 %\ 04/01/2020 %V 4 %N 2 %P 173-182 %! 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 %K N %K N' %K N'-Tetramethylethylene-diaminium-N %K N'-disulfonic acid chloride {[TMEDSA][Cl]2} Sulfonic acid-functionalized ionic liquid 4H-Pyrano[2 %K 3-c]pyrazole α-Carbamatoalkyl-β-naphthol α-Amidoalkyl-β-naphthol %R 10.22034/AJGC/2020.2.5 %X 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. %U https://www.ajgreenchem.com/article_87655_ced3fc931aedcd763a43e04438db07ce.pdf