TABLE 2.

Conversion of cis-Alkenyl Pinacolboronates to the Corresponding Trifluoroborates^a

entry	R	product	% isolated yield
1			83
2			83
3			82
4			78
5			78
6			72
7			62

^aAll reactions were carried out using 2 mmol of b in MeOH (0.5 M) and 10 mmol of KHF₂ (4.5 M).