K. Mikami et al., METAL BIS(TRIFLUOROMETHYLSULFONYL)AMIDES AS HIGHLY EFFICIENT LEWIS-ACID CATALYSTS FOR ACYLATION REACTIONS, Synlett, (2), 1996, pp. 171-172
Metal bis(trifluoromethylsulfonyl)amides such as aluminum, titanium an
d ytterbium bistrifylamides are first synthesized and shown to be high
ly effective Lewis acid catalysts for acylation reactions.