[TheOrganic]

I need DMSO pKa values for 2-Fluoroacetic acid, 2-Chloroacetic acid, 2-Bromoacetic acid and 2-Iodoacetic acid for my research.

I have searched extensively even through journal-archives, but didn't find DMSO values. pKa values in any other aprotic solvent will also do. I was able to find DMSO values for TCA and TFA , but not for any of these compounds.

If anyone can cite any reference, will be very indebted.

[Babcock_Hall]

http://books.google.com/books?id=Ql-2nKOxZN8C&pg=PA132&lpg=PA132&dq=pka+carboxylic+DMSO&source=bl&ots=Ecx4DGIc81&sig=Cq1SbWSWA_1jh9SmXrbqbT4UvNw&hl=en&sa=X&ei=tVzQUp-DE8bNsQThjID4Cw&ved=0CDoQ6AEwAg#v=onepage&q=pka%20carboxylic%20DMSO&f=false

The page is from a book by Brian Cox, and all I saw was a value for chloroacetic acid.  Apparently it is section 9.2 from his book.

[TheOrganic]

http://books.google.com/books?id=Ql-2nKOxZN8C&pg=PA132&lpg=PA132&dq=pka+carboxylic+DMSO&source=bl&ots=Ecx4DGIc81&sig=Cq1SbWSWA_1jh9SmXrbqbT4UvNw&hl=en&sa=X&ei=tVzQUp-DE8bNsQThjID4Cw&ved=0CDoQ6AEwAg#v=onepage&q=pka%20carboxylic%20DMSO&f=false

The page is from a book by Brian Cox, and all I saw was a value for chloroacetic acid.  Apparently it is section 9.2 from his book.

Thanks, but I needed at least two of the values. Any further help will be HIGHLY appreciated.

[TheOrganic]

Anyone?