BENZOFURAN DERIVATIVES; Biological Activity
Treatment of 1-[6-hydroxy-4-methoxybenzofuran-5-yl]ethanone (1) with cinnamaldehyde gave 1-[6-hydroxy-4-methoxybenzofuran-5-yl]-5-phenylpenta-2,4-diene-1-one (2) which reacted with formaline and 4-chloroniline to give benzofuran derivative (3) according to Mannich reaction. Interaction of 2 with 20% of sulphuric acid, malononitrile, ethylcyano acetate, phenyl hydrazine and guanidine hydrochloride afforded the corresponding furo[3,2-g]chromon-5-one (4), pyridine, pyrazole and pyrimidine derivatives (5-8). Also, compound 8 reacted with phosphorus-oxychloride in dimethyl formamide and p-flurobenzylidenemalononitrile to give formyl and pyrimidopyrimidene derivatives (10, 12).
How to Cite This Article
"SYNTHESIS OF SOME NEW BENZOFURAN DERIVATIVES OF EXPECTED BIOLOGICAL ACTIVITY,"
Al-Azhar Bulletin of Science: Vol. 18:
1, Article 16.