Process for dehalogenating the metal-halide bond in a low valent

Details Process for dehalogenating the metal-halide bond in a low valent Process for dehalogenating the metal-halide bond in a low valent

1978-08-08

1980-02-26

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260440, 260446, C07F 1500

Patent

active

041905954

ABSTRACT:
A novel process is described for preparing low valent Group VIII metal hydrides, useful as catalysts in the hydrogenation of a large variety of organic compounds, in which a low valent Group VIII metal halide complex, such as (Ph.sub.3 P).sub.3 RhCl, is reacted with an alkali or alkaline earth metal alkylamide, such as LiN(CH.sub.3).sub.2, containing at least one alkyl group having an alkyl hydrogen atom in the beta position with respect to the metal atom. The metal alkylamide functions both as a dehalogenating and hydrogenating agent in the process. The process can be conducted at room temperature in a suitable organic solvent under an inert atmosphere utilizing the metal alkylamide in stoichiometric quantities. The process is also useful in preparing zero valent Group VIII metal complexes, such as (Ph.sub.3 P).sub.4 Pd.degree..

REFERENCES:
patent: 3547964 (1970-12-01), Olivier
patent: 3808246 (1974-04-01), Fahey
patent: 3859359 (1975-01-01), Keblys
patent: 3939188 (1976-02-01), McVicker
patent: 4098807 (1978-07-01), Stone et al.

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