Catalytic method for the reductive amination of...

Details Catalytic method for the reductive amination of... Catalytic method for the reductive amination of...

C - Chemistry, Metallurgy

07

C

C07C 213/02 (2006.01) C07C 217/42 (2006.01) C07D 307/22 (2006.01) C07D 407/00 (2006.01) C08G 65/48 (2006.01)

Patent

CA 2079933

CATALYTIC METHOD FOR THE REDUCTIVE AMINATION OF POLY(OXYTETRAMETHYLENE) DIACETATES (Docket No. 81,023-F) ABSTRACT OF THE DISCLOSURE Poly(oxytetramethylene) diamines useful in the prepara- tion of polyamide and polyurea elastomers are prepared by the catalytic reductive amination of a poly(oxytetramethylene) diacetate feedstock under reductive amination conditions in the presence of ammonia and hydrogen using a hydrogenation/ dehydrogenation catalyst composed of, on an oxide-free basis, about 70 to 75 wt.% of nickel, about 20 to about 25 wt.% of copper, about 0.5 to 5 wt.% of chromium and about 1 to 5 wt.% of molybdenum.

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