%0 Journal Article %A Rocchi, Damiano %A González, Juan %A Menéndez Ramos, José Carlos %T Montmorillonite Clay-Promoted, Solvent-Free Cross-Aldol Condensations under Focused Microwave Irradiation %D 2014 %@ 1420-3049 %U https://hdl.handle.net/20.500.14352/34391 %X 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. %~