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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1265981Generated: November 1, 2026

Water → HCID 522153, compound

https://huagongshe.com/reaction/1265981

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 582928HCID 582928—
ReactantPotassium tert-butoxideHCID 23665647—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 522153HCID 52215391.5%

Reaction Conditions

Temperature72 °C

Reaction Steps

To a solution of 1.56 g (0.00739 mol) of 2-bromo-1-methyl-1-phenylcyclopropane in 5 ml of dimethylsulfoxide was added 1.429 g (0.0127 mol) of potassium tert-butoxide. After the reaction was heated to 72° C. for 4 hours, diethyl ether and water were added. The resulting mixture was transferred to a separatory funnel and the phases were separated. The organic layer was dried over MgSO4 and filtered. The solvent was removed from the filtrate in vacuo to yield 0.88 g of 70% pure 3-methyl-3-phenylcyclopropene as an oil. The major byproduct (roughly 20%) was 1-methyl-1-phenylcyclopropane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06548448B2
Source datasetuspto-grants-2003_04
ORD IDord-ed83dd0b5e504b129a749cd1d1a2b49a
Source noteuspto-grants-2003_04