Table 2.

Scope of the Catalytic, Asymmetric Borylation of α,β-Unsaturated Amides with BBA.

entry	product[a]
1	2a 90%, 93:7 er (85%, 93:7 er)[b]
2	2b 82%, 97:3 er
3	2c 80%, 92:8 er
4	2d 82%, 95:5 er (71%, 1.5 equiv BBA)[c]
5	2e 51%, 93:7 er
6	2f 86%, 98:2 er
7	2g 82%, 92:8 er
8	2h 84%, 97:3 er
9	2i 92%, 96:4 er
10	2j 71%, 76:24 er
11	2k 86%, 70:30 er
12	2l 80%, 66:34 er
13	2m 77%, 72:28 er
14	2n 85%, 78:22 er

^[a]Enantiomeric excess was determined by oxidation of 2 followed by SFC analysis of the corresponding alcohol.

^[b]Reaction performed on a 5.5 mmol scale with 2.5 mol % Cu(MeCN)₄PF₆, 2.5 mol % L2.

^[c]Reaction performed on a 3 mmol scale.