Integral intensities of the absorption bands of the skeletal vibrations of substituted furocoumarins
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The IR spectra of 5- and 8-hydroxyfurocoumarins and their esters, 5,8-disubstituted furocoumarins containing hydroxyl, methoxyl, and alkoxyl groups, and 4′,5′-dihydrofurocoumarins differ with respect to the intensity and number of the bands in the 1630–1500 cm−1 region of the spectrum. The integral intensities of the absorption bands in this frequency region differ markedly in the derivatives mentioned.
KeywordsCoumarin Integral Intensity Methoxyl Imperatorin Alkoxyl Group
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