%0 Journal Article
%T Phospho sulfonic acid: A novel and efficient solid acid catalyst for the one-pot preparation of 2H-indazolo[2,1-b]-phthalazine-triones
%A Kiasat Reza Ali
%A Mouradezadegun Arash
%A Saghanezhad Jafar Seyyed
%J Journal of the Serbian Chemical Society
%D 2013
%I Serbian Chemical Society
%R 10.2298/jsc120508088k
%X The efficient one-pot condensation of aldehyde, dimedone, and phthalhydrazide has been achieved in the presence of a catalytic amount of phospho sulfonic acid as a novel environmentally benign heterogeneous solid acid under solvent-free conditions. A diversified 2H-indazolo[1,2-b]phthalazinetrione derivatives were prepared in good to excellent yields in short time. The economical factors (time, cost, waste etc.) for this three-component reaction hold promise for the future of organic synthesis.
%K indazolo[2
%K 1-b]phthalazine-trione
%K multicomponent reaction
%K phthalhydrazide
%K dimedone
%K solvent-free
%K phospho sulfonic acid
%U http://www.doiserbia.nb.rs/img/doi/0352-5139/2013/0352-51391200088K.pdf