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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 581987Generated: October 30, 2026

Sulfuric Acid → HCID 54286808, compound

https://huagongshe.com/reaction/581987

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantHCID 53906065HCID 53906065—
ProductHCID 54286808HCID 5428680844.3%

Reaction Steps

Diethyl 3-methoxy-4-bromophenoxyoxalacetate (D10) (7.8 g, 20 mmoles) was stirred with concentrated sulphuric acid (50 ml) for 30 mins. The mixture was then poured into ice water (500 ml) and extracted with diethyl ether (250 ml). The organics were washed with saturated aqueous sodium bicarbonate, dried (Na2SO4) and evaporated to dryness. Flash chromatography on TLC silica gel eluting with dichloromethane gave the title compound (D11) (3.29 g, 44%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05922733
Source datasetuspto-grants-1999_07
ORD IDord-d6c441bc055847eaa98ec03e3eb7b283
Source noteuspto-grants-1999_07