title: Montmorillonite clay-promoted, solvent-free cross-aldol condensations under focused microwave irradiation.
abstract: An environmentally benign, clean and general protocol was developed for the synthesis of aryl and heteroaryl trans-chalcones. This method involved solvent-free reaction conditions under microwave irradiation in the presence of a clay-based catalyst, and afforded the target compounds in good yields and short reaction times. Furthermore, the same conditions allowed the synthesis of symmetrical, diarylmethylene-α,β-unsaturated ketones from aromatic aldehydes and ketones.
authors.affiliation: Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid 28040, Spain. rocchid83@gmail.com.
authors.forename: Damiano
authors.initials: D
authors.lastname: Rocchi
authors.affiliation: Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid 28040, Spain. juanfrangn@ucm.es.
authors.forename: Juan F
authors.initials: JF
authors.lastname: González
authors.affiliation: Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid 28040, Spain. josecm@ucm.es.
authors.forename: J Carlos
authors.initials: JC
authors.lastname: Menéndez
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D002384:Catalysis; D055772:Green Chemistry Technology; D058116:Lewis Acids / Q000737:chemistry; D008872:Microwaves; D012997:Solvents / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D058116:Lewis Acids; D012997:Solvents