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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1835965Generated: October 26, 2026

Toluene → 4-Hydroxy-4-methylpentyl 5-norbornene-2-carboxylate

https://huagongshe.com/reaction/1835965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantTriethylamineHCID 8471—
ReactantBicyclo(2.2.1)hept-5-ene-2-carbonyl chlorideHCID 98233—
Reactant4-Methylpentane-1,4-diolHCID 10986200—
SolventWaterHCID 962—
Product4-Hydroxy-4-methylpentyl 5-norbornene-2-carboxylateHCID 2217901490%

Reaction Steps

To a mixture of 118 g of 4-methyl-1,4-pentanediol, 111 g of triethylamine and 400 ml of toluene at 20° C., 157 g of 5-norbornene-2-carbonyl chloride was added over one hour. After 5 hours of stirring, 200 ml of water was added to the reaction solution to stop the reaction whereupon the mixture separated. The organic layer was washed with water and saturated sodium chloride water, dried over anhydrous sodium sulfate, and concentrated in vacuum. It was purified by vacuum distillation, collecting 214 g of 4-hydroxy-4-methylpentyl 5-norbornene-2-carboxylate (boiling point: 111-113° C./27 Pa, yield: 90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06774258B2
Source datasetuspto-grants-2004_08
ORD IDord-aa6c6d5e8dab4bb08ea3b27ae5f825cf
Source noteuspto-grants-2004_08