Synthesis of new binuclear tricarbonylchromium- and -manganese complexes of isoxazolidines by 1,3-dipolar cycloaddition reaction

Resumo

The reactions of 1,3-dipolar cycloaddition of π-complexes of nitrones of a general formula R²CH=N(O)R¹, where R¹ = Me, Bu^t, Ph, R² = Ph[Cr(CO)₃], C₅H₄[Mn(CO)₃] with (η⁶-styrene)-tricarbonylchromium and vinyl-(η⁵-cyclopentadienyl)tricarbonylmanganese have been investigated. These reactions led to the formation of corresponding isoxazolidines with high regio- and diastereoselectivity. The obtained metal-containing isoxazolidines were identified using UV, IR, ¹H NMR spectroscopy, mass-spectrometry, and X-ray diffraction analysis.