Diels-Alder Reactions of 6-Alkyl-3,5-dichloro-2H-1,4-oxazin-2-ones with Alkynes: Synthesis of 3,5-Disubstituted 2,6-Dichloropyridines
- 1 January 1991
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1991 (09) , 765-768
- https://doi.org/10.1055/s-1991-26570
Abstract
The Diels-Alder reaction of 6-alkyl-3,5-dichloro-2H-1,4-oxazin-2-ones 1 with different types of acetylenic compounds 2 is shown to be a versatile method for the generation of variously substituted 2,6-dichloropyridines. In most cases a high degree of regioselectivity and a high yield of 3,5-disubstituted 2,6-dichloropyridines 3 is obtained.Keywords
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