Table 2. Scope of Different ArMgBr Reagents in the Reaction with Triflate 5a^a,b,c.

^aReaction conditions: 5a (0.13 mmol), ArMgBr (0.195 mmol), THF (2 mL).

^bIsolated yields of product.

^cNumbers in parentheses indicate yields according to ³¹P NMR.

^dReaction was carried out on a 0.6 mmol scale.

^eReaction was carried out with o-TolMgCl.

^fFormation of a small amount of ketone 3a was observed but not isolated.

^gAdditionally, 7% of 3a was isolated.