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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1756565Generated: October 28, 2026

Isatin → HCID 336271, compound

https://huagongshe.com/reaction/1756565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsatinHCID 7054—
Reactant2H-3,1-Benzoxazine-2,4(1H)-dione, 6-nitro-HCID 20821—
Reactant5-Chloroisatoic anhydrideHCID 78480—
Reactant5-FluoroisatinHCID 236566—
SolventDimethylformamideHCID 6228—
ProductHCID 336271HCID 33627124%

Reaction Steps

Using the procedure in Example 12, and substituting NMP for DMF, 5-nitroisatoic anhydride for 5-chloroisatoic anhydride and isatin for 5-fluoroisatin gave 495 mg (24%) of the title compound: mp 349° C. (dec); 1H NMR(CDCl3)δ 7.46-7.54 (m, 1H), 7.84-8.00 (m, 3H), 8.18-8.22 (m, 1H), 8.62-8.68 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05441955
Source datasetuspto-grants-1995_08
ORD IDord-49b1fedd37ac49a59624bebf2a708c17
Source noteuspto-grants-1995_08