Table 5.

Cross-Coupling of Potassium Cyclobutyltrifluoroborate with Various Aryl- and Heteroaryl Chlorides^a

entry	chloride	product	% isolated yield
1	6a	7a	82
2	6b	7b	74
3	6c	7c	45
4	6d	7d	63

^aAll reactions used 0.5 mmol of the aryl- or heteroaryl chloride and 0.505 mmol of potassium cyclobutyltrifluoroborate.