Process for the manufacture of alpha, alpha-branched carboxylic acid vinyl esters

Process for the manufacture of alpha, alpha-branched carboxylic acid vinyl esters

  • CN 103,459,364 A
  • Filed: 04/03/2012
  • Published: 12/18/2013
  • Est. Priority Date: 04/07/2011
  • Status: Active Application
First Claim
Patent Images

1. produce α

  • for one kind, the method for alpha-branched vinyl esters of carboxylic acids, it comprises the steps;

    Thereby-make alkene charging and CO and water generation isomerization and transform the ratio NB/B that generates not dead front type isomer (NB) and dead front type isomer (B) higher than 1.5 acid under the Koch reaction conditions, wherein said dead front type isomer always has tertiary carbon atom in the α

    position of carboxylic acid and the β

    position of carboxylic acid, but not the dead front type isomer has primary carbon atom in the β

    position of carboxylic acid;

    -make the acid of gained change into vinyl ester.

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