Montmorillonite Clay-Promoted, Solvent-Free Cross-Aldol Condensations under Focused Microwave Irradiation
作者:Damiano Rocchi、Juan González、J. Menéndez
DOI:10.3390/molecules19067317
日期:——
An environmentallybenign, clean and general protocol was developed for the synthesis of aryl and heteroaryl trans-chalcones. This method involved solvent-free reaction conditions undermicrowaveirradiation 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
One-Pot Synthesis of Functionalized Carbazoles via a CAN-Catalyzed Multicomponent Process Comprising a C–H Activation Step
作者:Juan F. González、Damiano Rocchi、Tomás Tejero、Pedro Merino、J. Carlos Menéndez
DOI:10.1021/acs.joc.7b01199
日期:2017.7.21
a double annulation process that generates two C–C and two C–N bonds, with water as the only side product. Mechanistically, this transformation has some unusual features that include an intramolecular coupled hydrogenation-dehydrogenation process, the functionalization of a C–H group by direct attack onto a nitrogen function and a CAN-catalyzed reduction via hydride transfer from ethanol. The mechanisms