Yang C, Pang L, Wang A. Synthesis of 4,4’-Arylmethylene-bis(3-methyl-5-pyrazolones) using Diammonium Hydrogen Phosphate as an Efficient and Versatile Catalyst in Aqueous Media. ajc [Internet]. 2010 Oct. 25 [cited 2024 Jul. 23];23(2):749-51. Available from: https://asianpubs.org/index.php/ajchem/article/view/15847