2-Chloro-4-fluorobenzaldehyde → 2-Chloro-4-fluoro-benzaldehyde o-methyloxime

Participants

Reaction Steps

Reaction of 2-chloro-4-fluoro-benzaldehyde with methoxylamine hydrochloride as described in the preparation of compound 3-A gave the title oxime ether as a clear oil (93% yield). 1HNMR indicated a 9:1 mixture of E- and Z-isomers. 1HNMR 400 MHz (CDCl3) δ (ppm): (E-isomer) 3.99 (3H, s, OCH3), 6.99 (1H, m, aromatic), 7.12 (1H, m, aromatic), 7.87 (1H, m, aromatic), 8.41 (1H, s, CH).

Provenance & Evidence