发明授权
- 专利标题: Thioformamide improved process
- 专利标题(中): 硫代甲酰胺改进过程
-
申请号: US508789申请日: 1974-09-23
-
公开(公告)号: US3979452A公开(公告)日: 1976-09-07
- 发明人: Eugene H. Axelrod
- 申请人: Eugene H. Axelrod
- 申请人地址: NJ Rahway
- 专利权人: Merck & Co., Inc.
- 当前专利权人: Merck & Co., Inc.
- 当前专利权人地址: NJ Rahway
- 主分类号: C07C153/057
- IPC分类号: C07C153/057
摘要:
Thioformamide is prepared from hydrogen cyanide and hydrogen sulfide in an improved process employing a tertiary amino ion exchange resin as the catalyst. The process provides for nearly quantitative yields, and affords a purer, more stable product, and the elimination of polluting by-products.
公开/授权文献
- US5528663A DTMF detection for voice processing equipment 公开/授权日:1996-06-18