4-Nitroanthranilic acid → HCID 18971381, compound

Participants

Reaction Steps

2.90 g (13.3 mmol) of 4-chlorobenzenesulfonylisocyanate and 2.21 g (14.1 mmol) of 2-amino-4-nitrobenzoic acid were treated in the same way as in Example 1 to obtain 7.02 g of the above-identified compound (yield 57.9%). Properties: colorless crystal, Melting point: 258°-260° C., PMR (δppm, DMSO-d6): 7.10 (1H,s), 7.77 (2H,d), 7.92 (1H,d), 8.10 (1H,d), 8.19 (2H,d).

Provenance & Evidence