Synthesis of isoxazolines and isoxazoles via generation of nitrile oxides from O-stannyl aldoximes
Abstract
The reactions of O-tributylstannyl aldoximes and active halogen compounds such as tert-butyl hypochlorite or N-bromosuccinimide, whereby nitrile oxides are generated effectively, are applied to the preparations of isoxazolines and isoxazoles via[3 + 2] dipolar cycloaddition.