BH3 in tetrahydrofuran

1: With pyrrolidine in 1,4-dioxane T=102°C; Leimgruber-Batcho Indole Synthesis; 5 h; RefluxInert atmosphere; 2: With hydrazine hydrate in 1,4-dioxane T=45°C; Leimgruber-Batcho Indole Synthesis; 1 h;