Aluminum alloys having a high reducing capacity and preparation

Details Aluminum alloys having a high reducing capacity and preparation Aluminum alloys having a high reducing capacity and preparation

1979-05-31

1981-06-16

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252463, 252466PT, 252466B, 148 627, 427327, 427435, B01J 2104, B01J 2344, B01J 2372, B01J 2374

Patent

active

042736790

ABSTRACT:
This invention relates to a process for the preparation of aluminum alloys having a high reducing capacity for use in reductions in organic chemistry. According to this method a discontinuous heterodisperse superficial alloy is formed by subjecting an aluminum alloy prepared by a metallurgical process to superficial activation and/or treating aluminum with a salt of a metal having a greater normal electrode potential than that of aluminum; whereby the solution of said metal in a protic solvent is reacted with granular aluminum and/or an aluminum alloy. The catalyst prepared according to the invention is especially suitable for the reduction of a nitro or nitroso group into an amino group. The aluminum alloys having a high reducing capacity are also within the scope of the invention.

REFERENCES:
patent: 2290364 (1942-07-01), Tosterud
patent: 2883311 (1959-04-01), Halpert
patent: 3544485 (1970-12-01), Taira et al.
patent: 3619300 (1971-11-01), Heller et al.
patent: 3673116 (1972-06-01), Richter
patent: 3781227 (1973-12-01), Sokolsky et al.
patent: 4018628 (1977-04-01), Paulet
patent: 4066816 (1978-01-01), Sheasby et al.

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