申请人:HOECHST-ROUSSEL
PHARMACEUTICALS INCORPORATED
公开号:EP0067342A1
公开(公告)日:1982-12-22
An improved process for the preparation of 2-chloro-1,3-dimethoxybenzene involving the conversion of 1,3-dimethoxybenzene to [2,6-dimethoxyphenyl]-lithium and the reaction of this compound with a chlorinating agent is disclosed. 2-Chloro-1,3-dimethoxybenzene is useful as starting material for the synthesis of pharmacologically valuable 1,2-benzisoxazoloxy acetic acids.
本发明公开了一种制备 2-氯-1,3-二甲氧基苯的改进工艺,该工艺涉及将 1,3-二甲氧基苯转化为[2,6-二甲氧基苯基]-锂,并使该化合物与氯化剂反应。2-氯-1,3-二甲氧基苯可用作合成有药用价值的 1,2-苯并异恶唑氧基乙酸的起始原料。