ChemInform Abstract: A Convenient Procedure for the Synthesis of N-Acetyl-5,6-dihydro-2H-1,2-oxazines.
β Scribed by Pavel E. Ivashkin; Alexey Yu. Sukhorukov; Oleg L. Eliseev; Alexey V. Lesiv; Yulja A. Khomutova; Sema L. Ioffe
- Publisher
- John Wiley and Sons
- Year
- 2008
- Weight
- 44 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0931-7597
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A Convenient Procedure for the Synthesis of 4,6-Disubstituted 2-Oxo-2H-pyran-5-carboxylic Esters. -The Michael addition products of Ξ²-ketoester anions of (I) with acetylenic esters (II) readily cyclize under basic reaction conditions to give 2H-pyran-2-ones (III) (8 examples). -(COVARRUBIAS-ZUNIGA,