DENSITY FUNCTIONAL THEORY: COMPUTER-ASSISTED STUDY OF 1H AND 13C NMR SPECTRA OF 4-HYDROXY-3-(3’-METHYL-2’- BUTENYL)ACETOPHENONE ISOLATED FROM SENECIO GRAVEOLENS AND ITS MICROWAVE-ASSISTED SYNTHETIC DERIVATE, 4’-HYDROXY-3’-(3- METHYL-2-UTENYL)CHALCONE.

DENSITY FUNCTIONAL THEORY: COMPUTER-ASSISTED STUDY OF 1H AND 13C NMR SPECTRA OF 4-HYDROXY-3-(3’-METHYL-2’- BUTENYL)ACETOPHENONE ISOLATED FROM SENECIO GRAVEOLENS AND ITS MICROWAVE-ASSISTED SYNTHETIC DERIVATE, 4’-HYDROXY-3’-(3- METHYL-2-UTENYL)CHALCONE.