Table 21.

Asymmetric aza-Michael addition of aniline to β-nitrostyrenes.

96	R1		Yield [%]	ee [%]
a	4-Br	4-BrC6H4	82	19
b	4-Cl	4-BrC6H4	81	30
c	2-OMe	4-BrC6H4	65	44
d	4-OMe	4-BrC6H4	–	–
e	2-Br	4-BrC6H4	85	45
f	2,3-(OMe)2	4-BrC6H4	85	70
g	4-Me	Ph	70	30
h	4-Me	4-MeC6H4	75	30
i	4-Me	4-MeC6H4	70	42
j	4-Me	2-naphthyl	64	48