5-Bromo-2-methoxybenzaldehyde → 2-Methoxy-5-(thiophen-2-yl)benzaldehyde

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Reaktionsschritte

Ex-45A: 2-Methoxy-5-(thiophen-2-yl)-benzaldehyde was prepared from 5-bromo-2-methoxybenzaldehyde and thiophene-2-boronic acid in a similar manner as described in Ex-3A. 1H NMR (CDCl3) δ 10.49 (s, 1H), 8.07 (d, J=3 Hz, 1H), 7.79 (dd, J=3, 9.0 Hz, 1H), 7.28–7.26 (m, 2H), 7.09–7.06 (m, 1H), 7.02 (d, J=9 Hz, 1H), 3.97 (s, 3H).

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