Preparation method and application of 3,7,11-trimethyl-2,4,6,10-dodecatetraene-1-alcohol acetate

Preparation method and application of 3,7,11-trimethyl-2,4,6,10-dodecatetraene-1-alcohol acetate

  • CN 103,553,916 A
  • Filed: 11/22/2013
  • Published: 02/05/2014
  • Est. Priority Date: 11/22/2013
  • Status: Active Application
First Claim
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1. prepare 3,7,11-trimethylammonium-2 for one kind, the method for 4,6,10-dodecyl tetraene-1-alcohol acetic ester, is characterized in that, comprises the steps:

  • Step

         1);

    under protection of inert gas, in organic solvent, by raw material 3,7-dimethyl-1,6-octadiene-diethyl phosphonate and alkali mix, and controlling temperature of reaction be-40~

    30 ℃

    , resets dissociation reaction, makes the raw material rearrangement of fully dissociating become carbanion;

    Step

         2);

    rearrangement adds 2-methyl-4-acetoxy-2-butylene aldehyde after dissociating, controlling temperature is-40~

    30 ℃

    , carries out condensation reaction, obtains 3,7,11-trimethylammonium-2,4,6,10-dodecyl tetraene-1-alcohol acetic ester;

    Step

         3);

    after condensation reaction finishes, add water and organic solvent, layering, gets organic phase distillation and remove after organic solvent, obtains target product.

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