The regioselective synthesis of isomeric 5(3)‐aminomethyl‐3(5)‐phenyl isoxazoles using different methods is described. Spectroscopic data, especially mass spectrometric fragmentation, were used to identify and characterize the regioisomers. The muscarinicactivity of these isoxazoles was assayed on isolated guinea‐pig ileum and atria as well as on isolated rabbit vas deferens.
[EN] CATALYTIC ASYMMETRIC SYNTHESIS OF PRIMARY AMINES VIA BORANE REDUCTION OF OXIME ETHERS USING SPIROBORATE ESTERS<br/>[FR] SYNTHÈSE ASYMÉTRIQUE CATALYTIQUE D'AMINES PRIMAIRES PAR RÉDUCTION AU BORANE D'ÉTHERS D'OXIME AU MOYEN D'ESTERS DE SPIROBORATE