| 发明名称 |
Method of preparing phthalide |
| 摘要 |
A method has been invented for the preparation of phthalide which comprises chlorinating o-toluic acid at 30 DEG -260 DEG C. and recovering the phthalide obtained.
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| 申请公布号 |
US4216153(A) |
申请公布日期 |
1980.08.05 |
| 申请号 |
US19780931075 |
申请日期 |
1978.08.04 |
| 申请人 |
DYNAMIT NOBEL AG |
发明人 |
ENGLAENDER, FRITZ;STEFFEN, KLAUS D |
| 分类号 |
C07C63/70;C07D307/88;(IPC1-7):C07D307/88 |
主分类号 |
C07C63/70 |
| 代理机构 |
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| 地址 |
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