A Charge Transfer Transition in the Near U.V. Spectrum of 1,3-benzodioxole Derivatives

Abstract

Abstract 1,3-benzodioxole derivatives [figure 1(A, B)] have been much studied for their biological activities.1–12 Nevertheless, apart from our preceding papers13, 14 only few works have been done as concerns their spectroscopic behaviour and their electronic structures.15, 16 All the derivatives which have been studied in our recent works display a -CH2X group [Bzd-CH2X] in para to one of the oxygens of the five membered oxygenated fused ring (X being -H, -OH, -NH2, -NH+ 3, -COCH3 etc…). We want to study here more strongly perturbating substituents with X directly linked to the benzene chromophore [figure 1(C)] [Bzd-X].