| 发明名称 |
Cyanation of double bond systems |
| 摘要 |
A process for the preparation of compounds of the formula <IMAGE> wherein the substituents X, Y and Z have the meaning given in the description, by reaction of compounds of the formula <IMAGE> with a cyanide and an oxidizing agent other than Br2 in the presence of halides which offers industrial hygiene advantages and renders possible large-scale industrial access to dyestuff syntheses has been found.
|
| 申请公布号 |
US5750761(A) |
申请公布日期 |
1998.05.12 |
| 申请号 |
US19960608455 |
申请日期 |
1996.02.28 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HAMPRECHT, RAINER;MUELLER, CLAUDIA |
| 分类号 |
C07D239/88;C07B43/08;C07C253/00;C07C253/08;C07C255/32;C07C255/34;C07C255/41;C07C317/44;C07D213/74;C07D215/12;C07D231/36;C07D231/52;C07D277/20;C07D277/42;C07D333/60;C07D405/04;C07D413/04;C07D413/14;C07D417/04;C07D471/04;C07D491/052;C07D498/04;C09B23/01;C09B23/10;C09B23/14;C09B57/00;C09B57/02;D06P1/16;D06P3/26;(IPC1-7):C07C255/03 |
主分类号 |
C07D239/88 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
