Regioselectivity in the reactions of dip
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Ahmad S. Shawali; Bahgat A. Eltawil; Hassan A. Albar
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Article
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1984
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Elsevier Science
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French
β 114 KB
The cycloaddition of diphenylnitrilimine with coumarin and chromone gave the cycloadducts 4 and 5 respectively. The structures of these products were based on elemental and spectral analyses and alternate synthesis. The orientations of the cycloaddition are interpreted in terms of FM0 theory.