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KMID : 1059520110550020218
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Journal of the Korean Chemical Society
2011 Volume.55 No. 2 p.218 ~ p.229
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Synthesis of Pyrimidines and Heteroannulated Pyrimidine Ring Systems
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Mohammed, F.K.
Badrey, M.G.
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Abstract
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We have involved the imine compound 1 in condensations with various nitrogenous reagents including hydrazine hydrate to construct differently substituted pyrimidines. One of the pyrimidines so obtained was further subjected to interactions with different reagents such as propionic acid, formic acid, ethyl chloroformate, acdetic anhydride, carbon disulphide, cyanogene bromide, triflauroacetic acid and ethyl chloroacetate which resulted in the formation of annulated heterocyclic systems as pairs of isomers in most cases as a result of Dimroth-type rearrangement.
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KEYWORD
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Pyrimidine, Triazolopyrimidine, Triazinopyrimidine, Benzopyran derivatives
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