I want to do esterification of 1,1,2,2-tetrayl tetrabenzoic acid with NHS?

Dear all, I want to do esterification of 1,1,2,2-tetrayl tetrabenzoic acid with NHS. I just want to replace only one COOH group and rest three COOH groups remain on its place..Please give me any...

10 October 2017 8,410 3 View