2-amino-N-(4-chlorophenyl)-5-methylbenzamide → Benzo[b]thiophene-2-carboxamide, 3-chloro-N-[2-[[(4-chlorophenyl)amino]carbonyl]-4-methylphenyl]-

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Reaction Steps

To a solution of N-(4-chlorophenyl)-2-amino-5-methylbenzamide (0.11 g, 0.42 mmol) in pyridine (5 mL) at 0° C. was added 2-chlorocarbonyl-3-chlorobenzo[b]thiophene (0.15 g, 0.64 mmol), and the mixture allowed to warm to ambient temperature with stirring. After 16 hours, the mixture was poured onto water (5 mL) and the resulting white solid collected by filtration and dried in vacuo. Recrystallization from acetonitrile afforded 0.095 g (50% yield) of N-(4-chlorophenyl)-2-[((3-chlorobenzo[b]thien-2-yl)carbonyl)amino]-5-methylbenzamide, as a white crystalline solid; NMR (DMSO-d6 /TFA) 11.4 (s, 1), 10.7 (s, 1), 8.2 (d, 1), 7.4-8.2 (m, 10), 2.4 (s, 3) ppm.

Provenance & Evidence