| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 07.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Prepn - Oxidation of a pyrazolidin-3-one (I) carried out in presence of 0.01 - 20 mol % (based on I) of metal salts using atm. O as oxidant in pH-neutral medium |
| PATENT PHOTOCOPY | Available on request |
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