Process for the conversion of penicillin S-oxide into a correspo

Details Process for the conversion of penicillin S-oxide into a correspo Process for the conversion of penicillin S-oxide into a correspo

1973-06-22

1976-05-25

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260239A, C07D50110

Patent

active

039592669

ABSTRACT:
A penicillin S-oxide is rearranged into the corresponding desacetoxycephalosporin compound by heating said penicillin S-oxide at a temperature of from 70 to 140.degree.C in the presence of a sulfoxide of formula R.sup.1 -SO-R.sup.2, preferably dimethyl sulfoxide, or a sulfonium or sulfoxonium salt of said sulfoxyde or a mixture of said sulfoxide and said sulfonium or sulfoxonium salt. The sulfoxide may act as reaction medium as well as reactant or an inert organic solvent may be used as a reaction medium.

REFERENCES:
patent: 3725397 (1973-04-01), Graham et al.
patent: 3725399 (1973-04-01), Ellerton et al.

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