| 发明名称 |
Preparation of difluoroacetic acid fluoride and difluoroacetic acid esters |
| 摘要 |
A method for preparing difluoroacetic acid fluoride, which comprises reacting a 1-alkoxy-1,1,2,2-tetrafluoroethane of the formula HCF2CF2OR1 wherein R1 is a C1-4 alkyl group in a gas phase in the presence of a metal oxide catalyst. |
| 申请公布号 |
US5710317(A) |
申请公布日期 |
1998.01.20 |
| 申请号 |
US19950506730 |
申请日期 |
1995.07.26 |
| 申请人 |
ASAHI GLASS COMPANY LTD. |
发明人 |
OHARU, KAZUYA;KUMAI, SEISAKU |
| 分类号 |
B01J21/04;B01J21/06;C07B61/00;C07C41/06;C07C41/09;C07C43/12;C07C51/235;C07C51/58;C07C53/48;C07C67/14;C07C67/60;C07C69/63;(IPC1-7):C07C69/63;C07C53/21 |
主分类号 |
B01J21/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
