Hydrochloric Acid → Ethyl 6-chloro-4-[(1-chloro-2-naphthyl)amino]nicotinate

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Reaction Steps

1-Chloro-2-naphthalenamine and ethyl 4,6-dichloronicotinate were reacted in a mixture of EtOH and conc. HCl as described for example 33, step A. The resultant solid was isolated by filtration and washed with 10% Et2O/Hexane, giving ethyl 6-chloro-4-[(1-chloro-2-naphthyl)amino]nicotinate (22%). 1H NMR [400 MHz, (CD3)2SO] δ 10.07 (br s, 1H), 8.75 (s, 1H), 8.23 (d, J=8.7 Hz, 1H), 8.09-8.05 (m, 2H), 7.77-7.71 (m, 2H), 7.66 (ddd, J=8.0, 6.9, 1.1 Hz, 1H), 6.75 (s, 1H), 4.41 (q, J=7.1 Hz, 2H), 1.38 (t, J=7.1 Hz, 3H).

Provenance & Evidence