发明授权
US3962131A Rhodium containing catalyst and use thereof in preparation of
6-deoxy-5-oxytetracycline
失效
含有催化剂的铑及其在制备6-脱氧-5-氧化Y Y INE INE INE INE INE INE INE
- 专利标题： Rhodium containing catalyst and use thereof in preparation of 6-deoxy-5-oxytetracycline
- 专利标题（中）： 含有催化剂的铑及其在制备6-脱氧-5-氧化Y Y INE INE INE INE INE INE INE
-
申请号： US544839申请日： 1975-01-28
-
公开(公告)号： US3962131A公开(公告)日： 1976-06-08
- 发明人: Hermann Faubl , Annette M. Belton
- 申请人： Hermann Faubl , Annette M. Belton
- 申请人地址： NY New York
- 专利权人： Pfizer Inc.
- 当前专利权人： Pfizer Inc.
- 当前专利权人地址： NY New York
- 主分类号： B01J31/24
- IPC分类号： B01J31/24 ; C07C67/00 ; C07C231/00 ; C07C231/12 ; C07C237/26 ; B01J31/04 ; B01J31/30
摘要：
Catalyst produced by the process of reacting 1 mol of rhodium trichloride and 2 mols of sodium acetate in methanol at a temperature from about 50.degree.C. to the reflux temperature of said reaction mixture, then reacting resulting reaction mixture with 2 mols of triphenylphosphine at a temperature of from about 50.degree.C. to the reflux temperature of said reaction mixture and recovering resulting insoluble material and use thereof in hydrogenating 6-deoxy-6-demethy-6-methylene-5-oxytetracycline to obtain .alpha.-6-deoxy-5-oxytetracycline.
公开/授权文献
信息查询
