@article{Yahyazadeh_Hadesinea_Daneshmandi_2024, title={Silica sulfuric acid as an efficient and reusable heterogeneous catalyst for the synthesis of formamidines from the diaminomaleonitrile}, volume={2}, url={https://oiccpress.com/iranian-journal-of-catalysis/article/silica-sulfuric-acid-as-an-efficient-and-reusable-heterogeneous-catalyst-for-the-synthesis-of-formamidines-from-the-diaminomaleonitrile/}, abstractNote={Silica sulfuric acid as an efficient and reusable heterogeneous catalyst has been used for the preparation of amidines 2 from formimidate 1 by reaction with aromatic amines at room temperature in good to excellent yields. Imidate was prepared by treatment of equimolar quantities of triethyl orthoformate and diaminomaleonitrile in refluxing dioxane. All the compounds were characterized fully by spectroscopic techniques.}, number={4}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Yahyazadeh, Asieh and Hadesinea, Sara and Daneshmandi, Mohammad Saeed}, year={2024}, month={Feb.}, keywords={Diaminomaleonitrile., Heterogeneous catalyst, Silica sulfuric acid, Imidate, Amidine} }