Y. Sasson et al., TETRAMETHYLAMMONIUM CHLORIDE AS A SELECTIVE AND ROBUST PHASE-TRANSFERCATALYST IN A SOLID-LIQUID HALEX REACTION - THE ROLE OF WATER, Chemical communications, (3), 1996, pp. 297-298
Tetramethylammonium chloride (TMAC) is an effective phase transfer cat
alyst for the selective chloride/fluoride exchange reaction of activat
ed aryl chlorides with potassium fluoride provided that the amount of
water in the system is limited and controlled.