Process for the preparation of azetidinone-thiazoline precursors

Details Process for the preparation of azetidinone-thiazoline precursors Process for the preparation of azetidinone-thiazoline precursors

1975-07-23

1978-04-18

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D51304

Patent

active

040851133

ABSTRACT:
A process for the preparation of azetidinone-thiazoline precursors for cephalosporin synthesis. Said precursors are obtained by reducing by means of zinc dust in the presence of aqueous acetic acid a compound of formula ##STR1##

REFERENCES:
patent: 3594389 (1971-07-01), Cooper
patent: 3862164 (1975-01-01), Cooper
patent: 3862181 (1975-01-01), Davis et al.
patent: 3900487 (1975-08-01), Underwood et al.
Burwell, Chem. Rev., vol. 54, (1954), p. 626ff.
Hartung et al., Org. Reactions, vol. VII, (1953), pp. 267, 268.
McOmie, Protective Groups in Organic Chemistry, (1973), pp. 99 and 119.

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