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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1756568Generated: October 28, 2026

5-Chloroisatoic anhydride → HCID 478575, compound

https://huagongshe.com/reaction/1756568

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chloroisatoic anhydrideHCID 78480—
Reactant5-chloro-1H-indole-2,3-dioneHCID 87203—
Reactant5-FluoroisatinHCID 236566—
ProductHCID 478575HCID 478575—

Reaction Steps

Using the procedure in Example 12 and substituting isatoic anhydride for 5-chloroisatoic anhydride and 5-chloroisatin for 5-fluoroisatin gave the title compound in 39% crude yield: mp 295°-296° C.; 1H NMR (300 MHz, DMSO-d6) δ 8.46-8.53 (m, 1H), 8.33 (d, 1H), 7.96 (d, 2H), 7.69-7.84 (m, 3H); MS (M+H)+ 283.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05441955
Source datasetuspto-grants-1995_08
ORD IDord-847f56460de84e28867a6e107e7ba994
Source noteuspto-grants-1995_08