Organometallics 2005, 24, 3579-3581
3579
Safe Preparation and Purification of Sodium Tetrakis[(3,5-trifluoromethyl)phenyl]borate (NaBArF24): Reliable and Sensitive Analysis of Water in Solutions of Fluorinated Tetraarylborates Neal A. Yakelis and Robert G. Bergman* Division of Chemical Sciences, Lawrence Berkeley National Laboratory, and Department of Chemistry, University of California, Berkeley, California 94720 Received February 28, 2005 Summary: A safe, convenient preparation of the reagent sodium tetrakis[(3,5-trifluoromethyl)phenyl]borate (NaBArF24) has been devised by utilizing a magnesiumbromine exchange reaction in the absence of metallic magnesium. Purified material was then rigorously dried over P2O5 (NaBArF24 with
