Title of article :
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
Author/Authors :
Ravanshad ، Sharareh - Payame Noor University , Asvar ، Hakimeh - Payame Noor University , Fouladi ، Fatemeh - Payame Noor University , Pourkazemi ، Arezoo - Payame Noor University , Shamsizadeh ، Maasoomeh - Payame Noor University , Khalili ، Maryam - Payame Noor University , Merajoddin ، Maria - Payame Noor University , Zare ، Abdolkarim - Payame Noor University
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 , 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
Journal title :
Asian Journal of Green Chemistry
Journal title :
Asian Journal of Green Chemistry
