Table 1.

Enantioselective annulation of aryl imines

Entry	Substrate	Product	L*	T (°C)	% Yield	% ee
1			17b	50	94	95
2			17c	75	98	90
3			17c	125	99	68
4			17c	50	99	95
5			18a	75	93	87
6			18a	75	69	90
7			18b	50	80	93
8			18b	75	50	90

^aYield of N-benzylimine product determined by ¹H NMR using 2,6-dimethoxytoluene as an internal standard.

^bEe’s determined after hydrolysis of products with silica gel or HCl/H₂O-dioxane using chiral HPLC.