Kurangi, R.F.; Kawthankar, R.; Sawal, S.; Desai, V.G.; Tilve, S.G.
(Synthetic Communications. 37(4); 2006; 585-587.)
Alpha, beta‐unsaturated oximes obtained from the corresponding alpha, beta‐unsaturated ketones on treatment with 2 equivalents of manganese dioxide in refluxing chloroform gives 3,5‐disubstituted isoxazoles in good yields.