1,3-Dipolar cycloaddition reactions of 2-phenyl-4-arylidene-5(4H)-oxazolones with nitrile oxides
โ Scribed by N. G. Argyropoulos; E. Coutouli-Argyropoulou
- Book ID
- 112127618
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1984
- Tongue
- English
- Weight
- 233 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-152X
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๐ SIMILAR VOLUMES
## Abstract Nitrile oxides 2a, b and nitrile imines 2cโe are added to the C ๏ฃพ C bond of 4โarylideneโ2โphenylโ5(4__H__)โthiazolones 1 to afford spiroโisoxazolines 3aโd and spiroโpyrazolines 3eโj, respectively. The cycloaddition reactions are regioselective and only one of the two possible regioisome
4,5-Dihydro-2-methyloxazole la and 4,5-dihydro-2,4.4-trimethyloxazole lb, which are examples of cyclic imidate esters, undergo 1,fdipolar cycloaddition reactions with benzonitrile N-oxide, to give the appropriate 5,6-dihydro-7a-methyl-3-
The use of different aluminum derivatives in the reaction between cyclopentadiene and (Z)-2-phenyl-4-arylidene-5(4H)oxazolones, and in particular the use of different equivalents of the reagent, allows the modulation of the synthesis of the norbornane skeleton by a [4+2] cycloaddition or the more in