5-Phenyl-1-pentyne → 1-(5-Phenyl-pent-1-ynyl)-3-trifluoromethyl-benzene

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Reaction Steps

This product was prepared from toluene-4-sulfonic acid 3-trifluoromethyl-phenyl ester and pent-4-ynyl-benzene following the general procedure for the Sonogashira cross-coupling process described above. Chromatography eluent: heptane; yield (140 mg, 97%); 1H NMR δ (CDCl3): 7.66 (s, 1H), 7.61-7.7.49 (m, 2H), 7.46-7.36 (m, 1H), 7.35-7.16 (m, 5H), 2.79 (t, J=7.15 Hz, 2H), 2.43 (t, J=7.20 Hz, 2H), 1.93 (p, J=7.11 Hz, 2H); LCMS m/z: 288.

Provenance & Evidence