Process for the preparation of .beta.-lactam compounds

Details Process for the preparation of .beta.-lactam compounds Process for the preparation of .beta.-lactam compounds

1977-11-11

1979-07-24

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

544 21, 544 26, C07D49904, C07D50102

Patent

active

041622510

ABSTRACT:
Alkoxylated .beta.-lactam compound useful as an intermediate for various cephalosporin (or penicillin) derivatives which may be prepared by reacting a 7-sulfenylaminocephem compound (or a 6-sulfenylaminopenam compound) with an oxidizing agent or reacting a sulfinylaminocephem compound (or a 6-sulfinylaminopenam compound) with a dehydrated agent to give a sulfenyliminocephem compound (or a 6-sulfenyliminopenam compound) and reacting the latter compound with an alcohol in the presence of a base, an organic acid or a Lewis acid.

REFERENCES:
patent: 3907788 (1975-09-01), Nudelman
patent: 3960845 (1976-06-01), Hiraoka et al.
patent: 4041029 (1977-08-01), Firestone et al.
patent: 4053469 (1977-10-01), Yoshioka et al.
patent: 4119778 (1978-10-01), Gordon
Baldwin et al., J. Am. Chem. Soc., 95(7) 2401-2403, 04/04/73.
Welch, J. Org. Chem., vol. 41, No. 12, 2220-2222 (1976).

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