Hello everyone!
I am trying to prove the formation of a Copper acetylide. This is done by treating a terminal alkyne with CuI in presence of NEt
3 and DMF as solvent.
H≡-R + CuI
Cu≡-R
I tried to do this in an NMR-tube and then collecting spectra (comparing with the same substances only without CuI). I integrated the terminal proton agains the deutrated solvent in both cases and found that the terminal proton integral decreased (with addition of CuI).
Any other inputs/stratetgies on how to prove the formation of the Cu≡-R species?