2-Amino-4-chlorobenzoic acid → HCID 18971433, compound

Participants

Reaction Steps

1.12 g (4.77 mmol) of 4-chloro-2-fluorobenzenesulfonylisocyanate and 819 mg (4.77 mmol) of 2-amino-4-chlorobenzoic acid were treated in the same way as in Example 1 to obtain 742 mg of the above-identified compound (yield 40.0%). Properties: colorless crystal, Melting point: 267°-268° C., PMR (δppm, DMSO-d6):7.16 (1H,s), 7.24 (1H,d), 7.56 (1H,t), 7.73 (1H,d), 7.87 (1H,d), 8.10 (1H,t), 12.2 (1H,br).

Provenance & Evidence