Pyrazolone-based nitrido complexes: synthesis and nitrogen transfer to alkenes

The first examples of alkylpyrazolone based nitridomanganese(V) complexes are here reported. Styrene was used as a test substrate to study the complex's ability to transfer nitrogen in stoichiometric reactions. Preliminary trials yielded 75 to 91% of N-(2-hydroxy-2-phenylethyl)-2,2,2-trifluoroacetamide. An X-ray crystal structure for one of the nitrido complexes is also provided.