Preparation method of anethol trithione

Preparation method of anethol trithione

  • CN 103,524,482 A
  • Filed: 09/22/2013
  • Published: 01/22/2014
  • Est. Priority Date: 09/22/2013
  • Status: Active Application
First Claim
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1. a preparation method for Anethol Trithione, is characterized in that, said method comprising the steps of:

  • (1) raw material p-propenylanisole and SULPHUR POWDER are joined in DMF, at 145-150 ℃

    , react, after having reacted, concentrating under reduced pressure reclaims DMF;

    (2) in the residue after concentrated, add and estimate the dimethylbenzene of 4.8-5.3 times of weight of crude product and the gac of 0.20-0.24 times of weight, be warming up to 95-110 ℃ and

    decolour, decoloured by filtration, crystallization and the centrifugal Anethol Trithione crude product that obtains;

    (3) in described Anethol Trithione crude product, add the dimethylbenzene of 4.8-5.3 times of weight and the gac of 0.20-0.24 times of weight, be warming up to 95-110 ℃ and

    decolour, decoloured by filtration, crystallization, centrifugal, washing, alcohol wash and the dry Anethol Trithione fine work that obtains.

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