Cycloadditionen von zwei mäßig elektronenarmen alpha-substituierten Propensäurederivaten
Two moderate electron-deficient propenoic acid derivatives have been investigated, with special emphasis on their reaction behaviour in cycloaddition reactions and comparison as to their capto-dative nature. In all reactions it was observed that the dehydroamino acid derivative resembles more an acrylic acid derivative than a capto-dative olefin. In reactions with various nitrones only 5,5'-disubstituted isoxazolidines were observed as products.