title: Regioselective double Kyodai nitration of toluene and chlorobenzene over zeolites. high preference for the 2,4-dinitro isomer at the second nitration stage.
abstract: [reaction: see text]. The Kyodai nitration of toluene and chlorobenzene has been examined in the presence of a solid inorganic catalyst (montmorillonite K10, zeolite HZSM-5, or HBEA-25). Regioselection was quite low at the mononitration stage, but a considerably high preference for the 2,4-isomer was observed at the dinitration stage.
authors.affiliation: Department of Chemistry, School of Science, Kwansei Gakuin University, Nishinomiya 662-8501, Japan.
authors.forename: X
authors.initials: X
authors.lastname: Peng
authors.forename: H
authors.initials: H
authors.lastname: Suzuki