Triethylamine → 2-Tert-butoxy-2-(1-(4-chlorophenyl)-3-methyl-7-vinylnaphthalen-2-yl)acetic acid

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2-tert-Butoxy-2-(1-(4-chlorophenyl)-3-methyl-7-vinylnaphthalen-2-yl)acetic acid (76) was prepared by the method of Example 67 from ethyl 2-(7-bromo-1-(4-chlorophenyl)-3-methylnaphthalen-2-yl)-2-tert-butoxyacetate using tributyl(vinyl)tin and without triethylamine. 1H-NMR: 400 MHz, (CD3OD) δ: 7.74 (d, J=9 Hz, 1H), 7.65 (m, 2H), 7.55 (m, 3H), 7.32 (d, J=9 Hz, 1H), 7.13 (s, 1H), 6.65 (dd, J=18, 11 Hz, 1H), 5.71 (d, J=18 Hz, 1H), 5.19 (d, J=11 Hz, 1H), 5.17 (s, 1H), 2.59 (s, 3H), 0.98 (s, 9H). HPLC (Kinetex 2.6u, 50×4.6 mm, 2-100% MeCN/H2O+0.05% HOAc, 5 min run): tR (min)=3.99.

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