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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 394917Generated: October 30, 2026

Ethylparaben → HCID 86584486, compound

https://huagongshe.com/reaction/394917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylparabenHCID 8434—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantHCID 17949402HCID 17949402—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86584486HCID 8658448699.2%

Reaction Steps

400 mg of (RS)-2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-heptanol dissolved in 25 ml of THF absolute were treated with 382 mg of triphenylphosphine, 242 mg of ethyl 4-hydroxybenzoate and 0.24 ml of diethyl azodicarboxylate. The reaction mixture was heated to reflux for 6 hours. The mixture was diluted with 1 portion of 50 ml of diethylether and washed with 2 portions of 25 ml of water and 1 portion of 50 ml of a saturated aqueous sodium chloride solution. The organic phase was dried over MgSO4 and concentrated in vacuo. The resulting yellow oil was purified by flash chromatography (SiO2, 3% ethyl acetate/hexanes), giving 591 mg of (RS)-ethyl 4-[2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-heptyloxy]-benzoate as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06603012B2
Source datasetuspto-grants-2003_08
ORD IDord-4a7fcdc3f0de4e1f9e1b4af073517a46
Source noteuspto-grants-2003_08