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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1613481Generated: October 30, 2026

Sulfuric Acid → HCID 54066414, compound

https://huagongshe.com/reaction/1613481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantIsobutyleneHCID 8255—
Reactant4-(Benzyloxy)-2-methylidene-4-oxobutanoic acidHCID 11321967—
SolventDichloromethaneHCID 6344—
ProductHCID 54066414HCID 5406641490%

Reaction Steps

To a stirred solution of 2-(benzyloxycarbonylmethyl)propenoic acid (25.0 g, 114.0 mmole) in dichloromethane (200 ml) at -78° C. was added condensed isobutylene (50 ml) and concentrated sulphuric acid (1 ml). The mixture was allowed to warm to room temperature and kept for 72 hours. After this time the solution was washed with 10% sodium carbonate solution (3×200 ml), dried over magnesium sulphate and evaporated to give the required ester as a pale yellow oil (28.4 g, 90%). Found: C,69.60; H,7.35. C16H20O4 requires: C,69.55; H,7.30%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05192800
Source datasetuspto-grants-1993_03
ORD IDord-d0f197f5f6844444b8be1e128cf64c75
Source noteuspto-grants-1993_03