title: Synthesis of diphenylmethane from formalin and benzene in a biphasic system with 12-tungstophosphoric acid.
abstract: Heteropoly acids such as H3PW12O40 are exceptionally active catalysts in the synthesis of diphenylmethane from benzene and formalin (aqueous formaldehyde) in a biphasic system and can be recycled simply by drying the aqueous phase at room temperature.
authors.affiliation: Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan.
authors.forename: Z
authors.initials: Z
authors.lastname: Hou
authors.forename: T
authors.initials: T
authors.lastname: Okuhara