Table 2.

Scope of the Cu(II)-catalyzed asymmetric borylation with respect to aromatic α,β-unsaturated nitriles.

Entry	Substrate	Product	Yield (%)a	ee (%)b
1	1a	2a	84	81
2	1b	2b	66	78
3	1c	2c	92	90
4	1d	2d	75	81
5	1e	2e	87	87
6	1f	2f	75	85

^aIsolated yield. ^bDetermined by chiral HPLC analysis.