3,5-Dimethoxyphenol → 5-(4,6-Dihydroxy-1-benzofuran-2-yl)benzene-1,2,3-triol

Beteiligte Stoffe

Reaktionsschritte

This compound was prepared using Method A from 3,5-dimethoxyphenol and 2-bromo-1-(3,4,5-trimethoxyphenyl)ethanone: Yield 62% following procedures A.2 and A.5; m.p. 260° C. (dec.); IR 3442, 3326, 1600, 1539, 1470, 1313, 1197, 1072, 1037 cm−1; 1H NMR (500 MHz, δ ppm, DMSO-d6) 9.67 (s, 1H), 9.22 (s, 1H), 8.97 (s, 2H), 8.29 (s, 1H), 6.81 (s, 1H), 6.69 (s, 2H), 6.37 (s, 1H), 6.14 (s, 1H); 13C NMR (75 MHz, δ ppm, CD3OD) 158.3, 157.3, 155.0, 151.9, 147.4, 134.8, 123.8, 113.1, 104.8, 98.7, 97.7, 90.8.

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