With the reaction optimization successfully accomplished, the substrate scope is next examined (Scheme 2). The N-acyl-glutarimide side is first assessed by reacting with 2d. For the para substitution on the phenyl ring of 1a, a variety of electrondonating and electron-withdrawing groups are tolerated. The electron-donating groups of both Me (1b, 57%) and t Bu (1c, 53%) confer a lower yield. In contrast, the electronwithdrawing group can be beneficial (F, 1d, 78%) or detrimental (Cl, 1e, 50%). In the case of ortho substitution, the yield is invariably reduced (Me, 1f, 59%; F, 1g, 35%).