Author/Authors :
Adamo، نويسنده , , Mauro F.A. and Chimichi، نويسنده , , Stefano and De Sio، نويسنده , , Francesco and Donati، نويسنده , , Donato and Sarti-Fantoni، نويسنده , , Piero، نويسنده ,
Abstract :
The expected Michael adducts and spiroisoxazolines are obtained from the reaction between 3-methyl-4-nitro-5-styrylisoxazole and bis-enolisable ketones. Contrary to reported data, Michael adducts are obtained in good yields only when a substoichiometric amount of base is used, whereas spiroisoxazolines were obtained as the major product when the base is present in a large excess.