(4-Methoxyphenyl)boronic acid → Methyl 5-(4-methoxyphenyl)thiophene-2-carboxylate

Participants

Reaction Steps

Following General Procedure B, 4-methoxyphenylboronic acid (2.7 g, 18 mmol) was reacted with methyl 5-bromothiophene-2-carboxylate (2.0 g, 9.0 mmol) to afford the desired product (1.4 g, 61%): 1H NMR (300 MHz, CDCl3) δ 7.71 (d, J=3.9 Hz, 1H), 7.53 (td, J=9.7, 2.5 Hz, 2H), 7.14 (d, J=3.9 Hz, 1H), 6.89 (td, J=9.7, 2.5 Hz, 2H), 3.87 (s, 3H), 3.80 (s, 3H).

Provenance & Evidence