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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 859371Generated: November 1, 2026

Sulfuric Acid → HCID 22224674, compound

https://huagongshe.com/reaction/859371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAcetonitrileHCID 6342—
ReactantTriethylamineHCID 8471—
Reactant3-Iodobenzoyl chlorideHCID 74378—
ReactantLithium BromideHCID 82050—
Reactant2,2-Bis(trimethylsilyl)propanedioateHCID 22224580—
SolventIsopropenyl acetateHCID 7916—
ProductHCID 22224674HCID 22224674—
Product6-(3-Iodo-phenyl)-2,2-dimethyl-[1,3]dioxin-4-oneHCID 22224697—

Reaction Steps

The 3-(3-iodo-phenyl)-3-oxo-propionic acid was prepared from 3-iodobenzoyl chloride (21.0 g, 78.8 mmol) and bis(trimethylsilyl)malonate (21.0 mL, 82.8 mmol) with Et3N (23 mL, 165.5 mmol) and LiBr (7.54 g, 86.7 mmol) in CH3CN at 0° C. according to general procedure H (method c1). The crude material (21.9 g) was transformed into the title compound by stirring in isopropenyl acetate and conc. H2SO4 according to general procedure J (method a). Obtained as a yellow solid (9.6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07151098B2
Source datasetuspto-grants-2006_12
ORD IDord-44c86c2662ce4cf8a91e003937e9d044
Source noteuspto-grants-2006_12