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New condensed systems (VII–XVI), the structures of which were confirmed by the PMR spectra, were synthesized by the Fischer reaction of 2-methyl-5-hydrazinofuran, 2,3-dimethyl-5-hydrazinobenzofuran, and 2-methyl-8-hydrazinobenzofuro[3,2-c]pyridine with methyl ethyl ketone, methyl propyl ketone, cyclohexanone, 1-methyl-4-piperidone, and tetrahydro-4-thiopyrone.
KeywordsMethyl Ethyl Organic Chemistry Pyridine Ketone
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