发明名称 |
VERFAHREN ZUR DURCHFUEHRUNG VON CHEMISCHEN REAKTIONEN MIT FORMALDEHYD |
摘要 |
A formaldehyde reactant is provided to a chemical process or reaction, in the form of a formaldehyde-alcohol complex, by contacting paraformaldehyde with from about 0.25 to about 3 mole equivalents of an aliphatic alcohol in the presence of a catalytic amount of a base. In a preferred embodiment the chemical process is a process for the production of an aromatic azomethine by reaction of an aniline with formaldehyde. The azomethine may then be used to produce a haloacetanilide. |
申请公布号 |
DE69220221(T2) |
申请公布日期 |
1997.09.18 |
申请号 |
DE1992620221T |
申请日期 |
1992.03.20 |
申请人 |
ZENECA LTD., LONDON, GB |
发明人 |
RODRIGUEZ, GILBERT, RODEO, CA 94572, US |
分类号 |
C07C47/045;C07C41/56;C07C231/10;C07C233/66;C07C249/02;C07C251/04;(IPC1-7):C07C249/02 |
主分类号 |
C07C47/045 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|