Table 2.

Substrate Scope in the Lewis Acid Catalyzed Friedel-Crafts Cyclization^a

entry	substrate	yieldb	product
1		88%
2		93%
3		87%
4		98%
5		97%
6		96%c
7		93%d
8		98%
9		80%e
10		92%
11		89%d
12		97%
13		97%
14		98%
15		100%
16		87%f
17		95%e

^aInCl₃ (10 mol %), 4 Å MS, CH₂Cl₂ (0.05 M) 16 h, rt.

^bYield of isolated product.

^c30 mol % catalyst, 16 h.

^d20 mol % catalyst, 48 h.

^e20 mol % catalyst, 72 h.

^f20 mol % catalyst, 16 h.