Process for the preparation of .alpha.-6-deoxytetracyclines

Details Process for the preparation of .alpha.-6-deoxytetracyclines Process for the preparation of .alpha.-6-deoxytetracyclines

1986-05-01

1987-10-27

Hollrah, Glennon H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603512, 502166, C07C10319, B01J 3104

Patent

active

RE0325350

ABSTRACT:
An improved process for the preparation of .alpha.-6-deoxytetracyclines and more particularly to the stereo specific hydrogenation of the 6-methylene group of 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracyline and of its 11.alpha.-halo-analog, is described in which the catalyst is the reaction product of a rhodium salt or a complex with a hydrazine or salt thereof.

REFERENCES:
patent: 3849491 (1974-11-01), Villax et al.
patent: 3954862 (1976-05-01), Morris, Jr.
patent: 4001321 (1977-01-01), Faubl
patent: 4031137 (1977-06-01), Schmitt, Jr. et al.
patent: 4207258 (1980-06-01), Broggi et al.
U.S. Ser. No. 328,514 filed Feb. 1, 1973, Priority Document for France No. 2,216,268.
U.S. Ser. No. 368,066 filed Jun. 8, 1973, Priority Document for France No. 2,216,268.
U.S. Ser. No. 428,268 filed Dec. 6, 1973, Priority Document for France No. 2,216,268.

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