Process for the manufacture of aminoazetidinones

Details Process for the manufacture of aminoazetidinones Process for the manufacture of aminoazetidinones

1973-05-03

1976-05-18

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603067C, 260243C, C07D27908, C07D27760

Patent

active

039577716

ABSTRACT:
The present invention relates to a new process for the preparation of 6-aminopenicillanic acid and 7-amino-cephalosporanic acid derivatives by treating the corresponding acylamino derivatives with phosphinic acid chlorides, reacting the mixed acid anhydrides so obtained with agents forming imidohalides, converting the imido halides into iminoethers and hydrolysing them.

REFERENCES:
patent: 3499909 (1970-03-01), Weissenburger et al.
patent: 3575970 (1971-04-01), Weissenburger et al.
patent: 3676429 (1972-07-01), Weissenburger et al.
patent: 3875151 (1975-04-01), Fechtig et al.

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