| abstract |
The invention discloses a kind of preparation methods of 2,2,4- trimethyl -1,3- pentanediol diisobutyrates, using isobutylaldehyde as raw material, 2,2,4- trimethyl -1,3- pentanediols are converted by base catalyst, then 2,2,4- trimethyl -1,3- pentanediol diisobutyrates are converted under the conditions of acid catalyst again.The preparation method of 2,2,4- trimethyl -1,3- pentanediol diisobutyrate of the invention has the characteristics that material source is extensive, process flow is simple, high conversion rate, product purity are high and low in cost. |