# Can a Boc protecting group be removed with trifluoroacetic acid?

I am trying to cleave a tert-butyloxycarbonyl (Boc) protecting group from an aminooxy group ($\ce{-O-NH-Boc}$) with trifluoroacetic acid (TFA) in $\ce{CH2Cl2}$ but i get minimum product and too much starting material.

I need the product to be a TFA salt and not an HCl salt so I need to use TFA. Any solutions?

• What about your reaction conditions? – vapid Jun 28 '16 at 13:02