Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Using, as fluorinating reagent, the available compound Et 3 N, 3HF, we prove that it is possible, in a one-pot reaction to synthetise specifically mono or difluoro benzylic, ketones, esters or nitriles. The reaction proceeds through an α-cetyl (or α-cyano) carbenium.