发明授权
- 专利标题： Ortho substituted benzaldehydes, preparation thereof and use thereof
- 专利标题（中）： 正取代的苯甲醛，其制备及其用途
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申请号： US09852552申请日： 2001-05-10
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公开(公告)号： US06811832B2公开(公告)日： 2004-11-02
- 发明人: Rainer Wingen , Wolfgang Schmidt
- 申请人： Rainer Wingen , Wolfgang Schmidt
- 优先权： DE10022661 20000510
- 主分类号： C09K1932
- IPC分类号： C09K1932
摘要：
Compounds of the formula (I): in which X1=H or F, X2=H or F, and Y=Cl, Br or I, are prepared by reacting, in a solvent or solvent mixture at a temperature below −60° C., a halobenzene of the formula (II) with an organic lithium compound and then with a formyl equivalent of the formula (III): and may be used as starting materials for preparing agrochemicals, electronic materials and pharmaceuticals.
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