申请人:The Dow Chemical Company
公开号:US04127575A1
公开(公告)日:1978-11-28
In the process for preparing 2,3,5-trichloropyridine, 2,3,4,5- or 2,3,5,6-tetrachloropyridine by the oxidation of the appropriate trichloro- or tetrachlorohydrazinopyridine, the improvement which comprises carrying out the oxidation with an alkaline hypochlorite in the presence of a reaction medium.
在制备2,3,5-三氯吡啶或2,3,4,5-或2,3,5,6-四氯吡啶的过程中,通过氧化适当的三氯或四氯肼吡啶,在碱性次氯酸盐存在下,在反应介质中进行氧化的改进方法。