Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1532977Generated: October 30, 2026

Diethyl Ether → Methyl 4-(2-bromoethyl)benzoate

https://huagongshe.com/reaction/1532977

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantDiazomethaneHCID 9550—
Reactant4-(2-Bromoethyl)benzoic acidHCID 104068—
SolventTetrahydrofuranHCID 8028—
ProductMethyl 4-(2-bromoethyl)benzoateHCID 1058628799%

Reaction Steps

A solution of 9.16 g (40 mmol) of 4-(2-bromoethyl)benzoic acid in 100 mL of THF was combined with an ether solution containing excess diazomethane. The excess diazomethane was consumed by addition of glacial acetic acid and the resultant solution was concentrated, in vacuo. The residue obtained was partitioned between saturated NaHCO3 (150 mL) and ethyl acetate (150 ml). The layers were separated and the aqueous phase was extracted with ethyl acetate (70 mL). The combined organic extracts were dried over Na2SO4 and concentrated in vacuo, yielding the product as a yellow oil (9.65 g, 99% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06207670B1
Source datasetuspto-grants-2001_03
ORD IDord-017a2ff18c134c23bb5f3229a408d042
Source noteuspto-grants-2001_03