Inverse-electron-demand diels-alder reac
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Norbert Haider
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Article
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1991
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Elsevier Science
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French
β 673 KB
Abstra& The 1.4~diarylpyridazino[4,5-dlpyridazine derivatives la,b were found to undergo [4+2] cycloaddition reactions with a variety of electron-rich dienophiles like enamines and ketene acetals to affotd phthalazine derivatives in good to high yields.