malonate pKas

The pKa plugin gives the following pKa values:

diethyl malonate: 13.0

diethyl methylmalonate: 14.7

diethyl ethylmalonate: 15.9

diethyl propylmalonate: 16.3

diethyl isobutylmalonate: 16.7

diethyl cyclohexylmethylmalonate: 16.9

I find it hard to believe that the pKa values of these compounds increase so dramatically with such small changes in substitution.  Can you verify?

Hi,

 

Yes, you are right.  I have fixed these problem. The new release can be expected soon.

Thank you.

Jozsi