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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2078077Generated: October 30, 2026

Sulfuric Acid → HCID 67099505, compound

https://huagongshe.com/reaction/2078077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantDiethyl 2-(4-(3-methoxyphenyl)-tetrahydro-2H-pyran-4-carbonyl)malonateHCID 67099313—
ProductHCID 67099505HCID 670995052.7%

Reaction Conditions

Temperature0 °C

Reaction Steps

Diethyl 2-(4-(3-methoxyphenyl)-tetrahydro-2H-pyran-4-carbonyl)malonate (2.1 g) was added to 5 mL H2SO4 stirred at 0° C. The mixture was stirred at room temperature for 1 hour, M+1=379. The mixture was then poured into 100 g crushed ice and extracted with EtOAc (3×50 mL). The combined organic layers were washed with H2O (20 mL) and brine (20 mL), dried over anhydrous Na2SO4, and concentrated in vacuo. The crude product was purified by column chromatography eluting with 20% EtOAc/hexane to give 0.05 g of the title compound. MS (m/z)=379 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07928139B2
Source datasetuspto-grants-2011_04
ORD IDord-85d3506b93df4a0087c3ff76cdd8d965
Source noteuspto-grants-2011_04