Method for producing 2,6-dichloro-4-trifluoromethylaniline

Method for producing 2,6-dichloro-4-trifluoromethylaniline

  • CN 101,143,829 A
  • Filed: 10/16/2007
  • Published: 03/19/2008
  • Est. Priority Date: 10/16/2007
  • Status: Active Application
First Claim
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1. one kind 2, the production method of 6-dichlor-4-trifluoromethyl aniline is characterized in that:

  • comprise the following steps;

    successively(1) reaction;

    the p-trifluoromethylaniline raw material is added in the solvent, in reactor, feed chlorine and carry out chlorination reaction generation 2, the mixture of 6-dichlor-4-trifluoromethyl aniline, byproduct hydrochloric acid tail gas is used to reclaim hydrochloric acid;

    (2) remove solvent;

    with 2,6-dichlor-4-trifluoromethyl aniline mixture, remove solvent after, add the alkali neutralization, 2,6-dichlor-4-trifluoromethyl aniline crude product;

    (3) rectification under vacuum;

    with 2,6-dichlor-4-trifluoromethyl aniline crude product send into smart slip device carry out rectification under vacuum refining finished product.

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