Table 2.

Reaction with Different Benzyne Precursors^a

entry	benzyne precursor	Z	product	yield (%)b
1	2b	4,5-Me2		71
2	2c	4,5- (OMe)2		71
3	2d	4,5-F2		56
4	2e	3-OMe		78c

^aAll reactions were carried out on a 0.3 mmol scale with 1.2 equiv of benzyne precursor and 2.0 equiv of CsF.

^bIsolated yield.

^cThe product was assigned by a 2D-NOESY experiment; see the Supporting Information for details.