A versatile synthesis of 4,5-dihydropyrr
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Rodrigo Abonia; Braulio Insuasty; Jairo Quiroga; Heinz Kolshorn; Herbert Meier
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Article
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2001
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Journal of Heterocyclic Chemistry
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English
β 49 KB
## Abstract The reaction of 1β(2βaminophenyl)pyrrole with aromatic or heteroaromatic aldehydes in ethanol and catalytic amounts of acetic acid leads to 4,5βdihydropyrrolo[1,2β__a__]quinoxalines in high yields. When aliphatic aldehydes were used under the same conditions, a slow oxidation to the cor