Table 3.

Hydroamination/cyclization catalyzed by Shafer’s zirconium catalyst¹³

Entrya	Substrate	Product	Yield (%)b	ee (%)c
1			80	93
2			91	88
3			88	74

^aConditions: toluene at 110 °C, 10 mol% catalyst, 2–12 h.

^bIsolated yield.

^cDetermined by NMR analysis following derivatization with (S)-(+)-Mosher’s acid chloride.