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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1534083Generated: October 30, 2026

Hydrochloric Acid → HCID 14297825, compound

https://huagongshe.com/reaction/1534083

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant5-Anilino-3,4-dimethoxy-2H-pyrrol-2-oneHCID 136108879—
ProductHCID 14297825HCID 14297825—

Reaction Steps

500 g of 2,5-dihydro-3,4-dimethoxy-5-phenyliminopyrrol-2-one were stirred with 500 ml of concentrated hydrochloric acid in 2 l of water for 2 days at room temperature. Thereafter, the mixture was cooled and filtered under suction. 325 g of dimethoxymaleimide of melting point 126°-127° C. were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE033820
Source datasetuspto-grants-1992_02
ORD IDord-4a4708ca047f4361a3560661142fedc6
Source noteuspto-grants-1992_02