4,5-Dimethoxy-2-methoxymethoxybenzaldehyde → 2-[(4,5-Dimethoxy-2-methoxymethoxybenzylidene)amino]-3-methylphenol

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2-[(4,5-dimethoxy-2-methoxymethoxybenzylidene)amino]-3-methylphenol (F5) was prepared in a similar manner for the preparation of 2-[(5-Methoxy-2-methoxymethoxybenzylidene)amino]-3-methylphenol (F4) by using 4,5-dimethoxy-2-methoxymethoxybenzaldehyde (F2) (2.26 g, 10 mmol) instead of 5-methoxy-2-methoxymethoxybenzaldehyde (F1) in 86% (2.80 g): 1H-NMR (500 MHz, CDCl3) δ3.53 (s, 3H), 5.24 (s, 3H), 7.17 (d, 1H, J=9.0 Hz), 7.35 (d, 1H, J=9.0 Hz), 10.52 (s, 1H).

Provenance & Evidence