Table 3.
Ar = p-chlorophenyl.
Each entry represents the isolated yield on 0.3 mmol scale and used 3.0 equivs of arylboronic acid. Er values were determined by SFC.
On 3 mmol scale, 2q was isolated in 55% yield and 95.5:4.5 er.
Phenylboronic acid was used.
The absolute configuration was determined to be (R) and thus the rest of the products, except 2ac and 2ad, were assigned as (R) by analogy. The absolute configuration of 2ad was determined to be (S) and thus 2ac was assigned as (S) by analogy.12