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本文详细报导了毒死蜱Ⅵ和中间体３，５，６－三氯吡啶－２－醇钠盐Ⅳ的合成，对文献报道做了重要改进。
In this paper, the synthesis of chlorpyrifos Ⅵ and intermediate 3,5,6-trichloropyridin-2-ol sodium Ⅳ has been reported in detail, and important improvements have been reported in the literature.