Table 2.

Effects of the catalyst on the fluorination of 5^[a]

Entry	5 (equiv)	ketone catalyst		Yield[b]
1	23		R = CH3, X = H	90%
2	23		R = CH3, X = OMe	82%
3	23		R = CH3, X = NO2	18%
4	23		R = CF3, X = H	63%
5	23		R = H, X = H	59%
6	23		X = H	78%
7	23		X = OMe	76%
8	23		X = NMe2	17%
9	23		X = –	75%
10	23		X = O	87%
11	5		X = O	81%
12	5			88%
13	1.5			76%
14	1.0			59%

^[a]Reaction conditions: 0.01 mmol catalyst, 0.2 mmol Selectfluor, 2 mL CH₃CN.

^[b]Determined by ¹⁹F NMR using C₆H₅F as an external standard.