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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858641Generated: October 30, 2026

Water → HCID 23134202, compound

https://huagongshe.com/reaction/858641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthylene carbonateHCID 7303—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Bromo-2-ethylphenolHCID 87877—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 23134202HCID 2313420282.1%

Reaction Conditions

Temperature125 °C

Reaction Steps

To a solution of 2-ethyl-4-bromophenol (3.5 g, 17.4 mmol) and ethylene carbonate (3.22 g, 37 mmol) in NMP (60 mL) was added potassium carbonate (5.17 g, 37.4 mmol). The resulting mixture was heated to 125° C. and maintained for 3 h. The reaction was cooled and poured into water (250 mL) and extracted with EtOAc (2×100 mL). The combined organics were washed with brine, dried over Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography (10–20% EtOAc in hexanes) to give the product (3.5 g, 82% yield) as a clear oil. 1H NMR (300 MHz, CDCl3) δ: 1.19 (t, J=7.6 Hz, 3 H), 1.89 (brs, 1 H), 2.61 (q, J=7.6 Hz, 2 H), 4.05 (m, 4 H), 6.70 (d, J=8.7 Hz, 1 H), 7.24 (m, 2 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148226B2
Source datasetuspto-grants-2006_12
ORD IDord-a07a621d57934e4fac13c754439aac06
Source noteuspto-grants-2006_12