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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1003128Generated: October 31, 2026

Water → HCID 10878050, compound

https://huagongshe.com/reaction/1003128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 18795251HCID 18795251—
SolventBenzeneHCID 241—
ProductHCID 10878050HCID 10878050182%

Reaction Conditions

Temperature-5 °C

Reaction Steps

10 g of pyridine was added dropwise to a solution of 78 g (0.29 mol) of phosphorus tribromide in 130 ml of benzene. After the solution was stirred for 10 minutes and cooled to -5° C., a mixture of 102 g (0.77 mol) of pentane diol monoethyl ether and 5 g of pyridine was added dropwise. After maintaining the reaction temperature at 0° C. and stirring for 2 hours, the solution was stirred for 8 hours at the room temperature. 100 ml of water was added and extracted with diethyl ether. The organic layer was washed subsequently with 6N hydrochloric acid and an aqueous sodium hydrogen carbonate solution, then dried over anhydrous magnesium sulfate and concentrated. The residue was distilled under the reduced pressure, to obtain 103 g of 5-bromopentyl ethyl ether. Boiling point; 47-48° C. (1 mmHg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06045720
Source datasetuspto-grants-2000_04
ORD IDord-4a5fd6c20d454ce78fee5b274035ee6f
Source noteuspto-grants-2000_04