Synthesis of new isoxazolidine (η5-cyclopentadienyl)manganese tricarbonyl complexes by 1,3-dipolar cycloaddition reaction

1,3-Dipolar cycloaddition reactions of nitrones of general formula R2CH=N(O)R1, where R1 = Me, But, Ph, R2 = Ph, Cp[Mn(CO)3] with styrene and vinyl-η5-(cyclopentadienyl) manganese tricarbonyl were studied. The products of these reactions, i.e., isoxazolidines, were isolated, purified, and identified. A high selectivity of the cycloaddition reactions involving both dipoles and dipolarophiles containing cyclopentadienylmanganese tricarbonyl group was demonstrated.