So, I have found, by research, that I can add a carboxyl group to an amorphis or activated carbon by treatment with hydrogen peroxide. So far, so good.
My memory tells me that this is a very useful handle for additional reactions, but I'm having trouble finding how to add a halide at this location, bromine for preference. I found that acetyl acid and phosphorous tribromide together will produce acetyl bromide, but I'm not sure how well it will work with an unidentified carbon mass on the other end.
Can anyone offer me a useful reaction for producing an acyl halide from an unidentified carbon chain with a carboxyl on the end? Many thanks!