Benzoic acid, 2-hydrazinyl-, hydrochloride (1:1) → HCID 9842661, compound

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To a solution of 5-iodo-3(2H)-benzofuranone (0.551 g, 2.12 mmol) [Cagniant, P. et al. Hebd. Seances Acad. Sci., Ser. C, 1976, 282 (21), 993-6] in ethanol (100 mL) was added a solution of 2-hydrazinobenzoic acid hydrochloride (0.800 g, 4.24 mmol) in deionized water (50 mL). The mixture was stirred for one hour at room temperature and then allowed to sit while cooled (0° C.). Vacuum filtration and drying in vacuo afforded 0.480 g (58%) of the title compound as a tan solid: mp 169° C. (dec) which was used without further purification.

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