发明名称 |
Process for production of polyalkyl-substituted aromatic aldehyde |
摘要 |
In the process of the present invention, a polyalkyl-substituted aromatic aldehyde is produced by the formylation of a corresponding polyalkyl-substituted aromatic compound with carbon monoxide in the presence of hydrogen fluoride/boron trifluoride catalyst. By limiting the amount of hydrogen fluoride to a specific range, the formylation rapidly proceeds under mild conditions without causing the precipitation of solid matters even when the starting polyalkyl-substituted aromatic compound has alkyl groups on both the carbon atoms adjacent to the site to be formylated.
|
申请公布号 |
US6881866(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20030615297 |
申请日期 |
2003.07.09 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
KATO KINJI;HATAKEYAMA TSUYOSHI;KITAMURA MITSUHARU |
分类号 |
C07B61/00;C07C45/49;C07C47/542;(IPC1-7):C07C45/49 |
主分类号 |
C07B61/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|