Conversion of carboxylic acids to potassium acyltrifluoroborates (KATs) by Cu-catalyzed borylation of mixed anhydrides
We report the preparation of potassium acyltrifluoroborates (KATs) from widely-available carboxylic acids. Mixed anhydrides of carboxylic acids {were|had been|have been} {prepared|ready} {using|utilizing|making use of|employing|working with|applying} isobutyl chloroformate and transformed {to…