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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1451594Generated: October 26, 2026

Carbon tetrabromide → 2H-Pyran, 2-[(12-bromododecyl)oxy]tetrahydro-

https://huagongshe.com/reaction/1451594

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
ReactantDodecanediol monotetrahydropyranyl etherHCID 21849359—
SolventDichloromethaneHCID 6344—
Product2H-Pyran, 2-[(12-bromododecyl)oxy]tetrahydro-HCID 1107859241.9%

Reaction Conditions

Temperature0 °C

Reaction Steps

The above-mentioned dodecanediol monotetrahydropyranyl ether (7.882 g) and 11.437 g of carbon tetrabromide were dissolved in 78 ml of dichloromethane. Triphenylphosphine (10.843 g) was added thereto under ice-cooling and the mixture was stirred at 0° C. for 5 minutes. The solvent was distilled away under reduced pressure and the residue was purified by silica gel column chromatography to give 4.029 g of 1-bromo-12-tetrahydropyranyloxydodecane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05604229
Source datasetuspto-grants-1997_02
ORD IDord-922dffcd9e3b46f9a086badfac4cb5d6
Source noteuspto-grants-1997_02