The Vilsmeier-Haack reaction with 3,4-disubstituted isoxazolin-5-ones. A new synthesis of 1,3-oxazin-6-ones and 1,3-oxazine-2,6-diones.
โ Scribed by Egle M. Beccalli; Alessandro Marchesini; Henriette Molinari
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 182 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Vilsmeier-Haack type reaction on isoxazolin-5-ones is presented. Recently described is zin-6-ones. 2 The synthetic We report here on the the preparation of a number of E-amino-' and 2-phenyl-6H-1,3-oxapotential of such a class of compounds is well documented.3 syntheses by a Vilsmeier-Haack type reaction of 2-dimethylamino-
๐ SIMILAR VOLUMES
## Abstract Facile and convenient methods for the preparation of a variety of 2,6โdisubstituted 4__H__โ1,3โoxazinโ4โones 3 by three complementary methods are described. Treatment of the branched aliphatic imidate 2c,d with diketene 1 in the presence of a catalytic amount of acetic acid affords 2โsu