Process for producing 5-hydroxy-6-demethyl-6-desoxy-6-methylene-

Details Process for producing 5-hydroxy-6-demethyl-6-desoxy-6-methylene- Process for producing 5-hydroxy-6-demethyl-6-desoxy-6-methylene-

1994-07-01

1997-11-11

Cook, Rebecca

Organic compounds -- part of the class 532-570 series

Organic compounds

Tetracyclo naphthacene configured ring system having at...

C07C23726

Patent

active

056866348

ABSTRACT:
In a process for dehydrating 5-hydroxy-11a-chlorotetracycline-6,12-hemiketal to 5-hydroxy-6-demethyl-6-desoxy-6-methylene-11a-chlorotetracycline, utilizing an acid which is not decomposable by water, formic acid serves as a solvent free from chlorinated hydrocarbons.

REFERENCES:
patent: 2984686 (1961-05-01), Blackwood
patent: 3026354 (1962-03-01), Blackwood
patent: 4659515 (1987-04-01), Lugosi et al.
CA 115:158758 Krueger et al. DD28951945, 1991.
CA 120:323093 Krueger et al, DE4221855A, Jan. 5, 1994.

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