Dibromoformaldoxime is a reagent that undergoes cycloaddition with alkynes to prepare substituted 3-bromo-isoxazoles in high yield.
参考文献
Chiarino, D., et al.: J. Heterocyclic Chem., 24, 43 (1987); De Amici, M., et al.: J. Org. Chem., 54, 2646 (1989); Castelhano, A., et al.: 16, 335 (1988).