Fig. 6: Scope of N-propargylation of indoles.
From: Direct asymmetric N-propargylation of indoles and carbazoles catalyzed by lithium SPINOL phosphate

Reaction conditions: 1' (0.05 mmol), 4 (0.08 mmol), (R)-Li[P2] (5 mol%), toluene (1 mL). a Run with (S)-Li[P2]. b Run with (R)-Li[P1].