title: Ultrasound promoted rapid and green synthesis of 1,8-dioxo-octahydroxanthenes derivatives using nanosized MCM-41-SO(3)H as a nanoreactor, nanocatalyst in aqueous media.
abstract: An efficient and green procedure has been developed for the synthesis of 1,8-dioxo-octahydroxanthenes derivatives. The reaction was carried out in water under ultrasound irradiation, using nanosized MCM-41-SO(3)H. In this method, several types of aromatic aldehyde, containing electron-withdrawing groups as well as electron-donating groups, were rapidly converted to the corresponding 1,8-dioxo-octahydroxanthenes in good to excellent yields. This novel synthetic method is especially favored because it provides a synergy of the nanosized MCM-41-SO(3)H and ultrasound irradiation which offers the advantages of high yields, short reaction times, simplicity and easy workup compared to the conventional methods reported in the literature.
authors.affiliation: Department of Chemistry, KN Toosi University of Technology, Tehran, Iran. shrostamizadeh@yahoo.com
authors.forename: Shahnaz
authors.initials: S
authors.lastname: Rostamizadeh
authors.forename: Ali Mohammad
authors.initials: AM
authors.lastname: Amani
authors.forename: Gholam Hossein
authors.initials: GH
authors.lastname: Mahdavinia
authors.forename: Gelareh
authors.initials: G
authors.lastname: Amiri
authors.forename: Hamid
authors.initials: H
authors.lastname: Sepehrian
mesh_terms: D002384:Catalysis; D002625:Chemistry, Organic / Q000379:methods; D055772:Green Chemistry Technology; D007211:Indoles / Q000737:chemistry*; D008422:Materials Testing; D008956:Models, Chemical; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods; D013451:Sulfonic Acids / Q000737:chemistry*; D014465:Ultrasonics; D014867:Water / Q000737:chemistry
chemical_list: C512018:1,1-bis(3'-indolyl)methane; D007211:Indoles; D013451:Sulfonic Acids; D014867:Water