An improved and effective method for the preparation of α,β- unsaturated oximes and isoxazole derivatives

Article abstract of DOI:10.1016/S0040-4020(97)10320-9

β-Functionalized oximes derived from phosphine oxides 5, phosphonates 8 and phosphonium salts 10 are easily obtained by simple addition of hydroxylamine compounds 2 to substituted allenes 3 and 6 or to propargylphosphonium salt 9. These oximo derivatives