Process for the preparation of penicillanic acid 1,1-...

Details Process for the preparation of penicillanic acid 1,1-... Process for the preparation of penicillanic acid 1,1-...

C - Chemistry, Metallurgy

07

D

260/111, 260/118

C07D 499/00 (2006.01)

Patent

CA 1216842

A B S T R A C T Preparation of penicillanic acid 1,1-dioxide and derivatives thereof by debromination of 6-alpha-bromo- and/or 6,6-dibromo- penicillanic acid 1,1-dioxides. The debromination is effected in a water-containing medium by reduction with zinc in association with an acid having a pKa-value measured in water less than 3.5.

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