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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1836943Generated: November 3, 2026

Ethylene Glycol → HCID 14119832, compound

https://huagongshe.com/reaction/1836943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene GlycolHCID 174—
ReactantHydrochloric AcidHCID 313—
Reactant7-Bromobicyclo[4.2.0]octa-1,3,5-trieneHCID 568591—
ReactantPotassium tert-butoxideHCID 23665647—
ProductHCID 14119832HCID 14119832—

Reaction Conditions

Temperature80 °C

Reaction Steps

To 56.1 g of potassium t-butoxide, 150 ml of ethylene glycol was dropwise added in a stream of nitrogen to dissolve potassium t-butoxide completely. To the solution, 45.3 g of 1-bromobenzocyclobutene (synthesized according to a method of DeCamp et al., J. Org. Chem., 1981, 46, 3918) was dropwise added. After the addition was completed, the mixture was heated to 80° C., and stirred for 8 hours. The mixture was cooled to room temperature, and poured into ice-cold water. After adjusting pH to 6 with hydrochloric acid, an organic phase was extracted with ethyl acetate. After the solvent was distilled away, the residue was purified in a silica gel chromatography to obtain 20.6 g of 1-(2′-hydroxyethoxy)-benzocyclobutene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06780567B2
Source datasetuspto-grants-2004_08
ORD IDord-353fa5376396467ba0a8c3ae2fa37401
Source noteuspto-grants-2004_08