| 发明名称 |
Morpholinodiphenylphthalides |
| 摘要 |
Substituted 3,3-diphenylphthalides, useful as color precursors, particularly in the art of pressure-sensitive duplicating systems and heat-sensitive marking systems, are prepared by condensing substituted 2-benzoylbenzoic acids with substituted anilines.
|
| 申请公布号 |
US4209618(A) |
申请公布日期 |
1980.06.24 |
| 申请号 |
US19780894682 |
申请日期 |
1978.04.10 |
| 申请人 |
STERLING DRUG INC |
发明人 |
CROUNSE, NATHAN N;SCHMIDT, PAUL J |
| 分类号 |
C07D295/155;C07D307/885;C09B11/24;(IPC1-7):C07D413/10 |
主分类号 |
C07D295/155 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
