Synthesis of benzo[d]pyrrolo[2,1-b][1,3]oxazines by intramolecular cyclization of 2,4-dioxabutanoic acids 2-(hydroxymethyl)phenylamides

( Z )-4-Aryl- N -[2-(2-hydroxymethyl)phenyl]-2,4-dioxo-3-[3-oxo-3,4-dihydroquinoxalin-2(1 Н )-ylidene]butanamide heated in Dowthem A at 200°С quickly underwent cyclization into 3а-aryl-2-hydroxy-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)-3a,5-dihydro-1 H -benzo[ d ]pyrrolo[2,1- b ][1,3]oxazin-1-ones.

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Bibliographic Details
Published in:Russian journal of organic chemistry 2017, Vol.53 (5), p.793-795
Main Authors: Maslivets, A. A., Dmitriev, M. V., Tarasova, O. P., Maslivets, A. N.
Format: Article
Language:English
Subjects:
Aromatic compounds
Chemistry
Chemistry and Materials Science
Organic Chemistry
Short Communications
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Summary:( Z )-4-Aryl- N -[2-(2-hydroxymethyl)phenyl]-2,4-dioxo-3-[3-oxo-3,4-dihydroquinoxalin-2(1 Н )-ylidene]butanamide heated in Dowthem A at 200°С quickly underwent cyclization into 3а-aryl-2-hydroxy-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)-3a,5-dihydro-1 H -benzo[ d ]pyrrolo[2,1- b ][1,3]oxazin-1-ones.
ISSN:1070-4280
1608-3393
DOI:10.1134/S1070428017050244