Table 5.

Substrate Scope for Catalytic Asymmetric Selenoetherification

entry	substrate	producta	yield,b %	e.r.d
1.	(E)-29	28f	97%	68.9:31.1
2.	(E)-30	31	86%	74.9:25.1
3.	(E)-36	37	94% 37:38 = 1.4:1c	78.8:21.2
		38		85.1:14.9
4.	(E)-39	40	86% 40:41 = 4.5:1c	82.6:17.4
		41		83.8:16.2
5.	(Z)-29	42	80%	50.9:49.1

^aAryl = 2-nitrophenyl.

^bReaction conditions: alkene (1.0 mmol), 34 (1.1 mmol), MsOH (1.0 equiv), 35m (0.1 mmol), CHCl₃ (0.1 M), 25 °C.

^cExo:Endo ratios determined by ¹H NMR spectroscopic analysis of the crude reaction mixture.

^dDetermined by CSP-SFC analysis