sodium hydroxide; tetra-(n-butyl)ammonium iodide; trifluoroacetic anhydride 1.) CH2Cl2, 22h, room temp., 2.) room temp.; Yield given. Multistep reaction;

sodium hydroxide; tetra-(n-butyl)ammonium iodide; trifluoroacetic anhydride 1.) CH2Cl2, 19h, room temp., 2.) MeOH, 30 min, room temp.; Yield given. Multistep reaction;