title: Relative reactivities of the excited states of furocoumarins for [2 + 2] photocycloaddition reaction with tetramethylethylene.
mesh_terms: D000475:Alkenes / Q000032:analysis*; D011564:Furocoumarins / Q000032:analysis*; D013058:Mass Spectrometry; D010777:Photochemistry; D013050:Spectrometry, Fluorescence
chemical_list: D000475:Alkenes; D011564:Furocoumarins; C040216:2,3-dimethyl-2-butene