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Synthesis of ï§-dispiro-iminolactones using bromo substituted ï¡-dicarbonyl phenanthraquinone
Mohammad Qandalee, Nad Ali Hasannataj, S.Mohammad Vahdat, Mohammad Alikarami
ï§-Dispiro-iminolactones have been synthesized by the three component reaction between 3,6- dibromophenanthraquinone, dialkyl acetylenedicarboxylates and isocyanides via a one-pot mode in high yields. The method offers advantages such as ease of the work-up, high yields of products, mild reaction condition and short reaction times.
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