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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1099565Generated: October 31, 2026

Methylparaben → HCID 66812433, compound

https://huagongshe.com/reaction/1099565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylparabenHCID 7456—
ReactantTriphenylphosphineHCID 11776—
Reactant2-(4-Bromophenyl)ethanolHCID 72851—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 66812433HCID 6681243373.1%

Reaction Steps

Methyl 4-hydroxybenzoate (1.09 g, 7.14 mmol), 2-(4-bromophenyl)ethanol (1.44 g, 7.14 mmol), and triphenylphosphine (2.06 g, 7.86 mmol) were dissolved in THF (44 mL), and then diethyl azodicarboxylate (3.57 mL, 40% toluene solution, 7.86 mmol) was added thereto while stirring under ice-cooling. The mixture was further stirred at room temperature for 2 days, and then the reaction solution was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate, 19:1 to 9:1, v/v) to give 1.75 g of the title compound (white powder, yield: 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143446B2
Source datasetuspto-grants-2012_03
ORD IDord-b219cf4c6683473981e8c75c2554eb4f
Source noteuspto-grants-2012_03