Table 5. Addition of various lithium amides 2a, c, and e–h to N,N-di(Boc)-benzamide 6 ^a .

^aReactions performed in air at ambient temperature using 1 g of solvent and 1 mmol of benzamide 6. Reactions stirred for 20 s, then quenched with sat. Rochelle's salt soln. (5 mL). Lithium amides 2a, c, and e–h were added as a 1 M soln. in 2-MeTHF. Isolated yields are given.