4-Chlorophenylboronic acid → 2-(1,4-Bis(4-chlorophenyl)-3-methylnaphthalen-2-yl)-2-tert-butoxyacetic acid

Participants

Reaction Steps

2-(1,4-bis(4-chlorophenyl)-3-methylnaphthalen-2-yl)-2-tert-butoxyacetic acid (140) was prepared in a manner similar to 2-tert-butoxy-2-(1-(4-chlorophenyl)-3,4-dimethylnaphthalen-2-yl)acetic acid of Example 125, except using 4-chlorobenzene boronic acid in the Suzuki reaction, giving the title compound (mono trifluoroacetic acid salt). 1H-NMR: (400 MHz, DMSO-d6): δ 12.82 (s, 1H), 7.75-7.63 (m, 4H), 7.55 (dd, J=8.2, 2.4 Hz, 1H), 7.46-7.31 (m, 5H), 7.26-7.21 (m, 2H), 5.14 (s, 1H), 2.24 (s, 3H), 0.96 (s, 9H). LCMS-ESI− (m/z): [2M-2H+Na]− calcd for C58H50Cl4NaO6: 1007.2; Found: 1007.1.

Provenance & Evidence