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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2247769Generated: October 31, 2026

Isopropyltriphenylphosphonium iodide → 4-Bromo-2-methyl-1-(2-methylprop-1-en-1-yl)benzene

https://huagongshe.com/reaction/2247769

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropyltriphenylphosphonium iodideHCID 2723783—
Reactant4-Bromo-2-methylbenzaldehydeHCID 13555150—
ReactantPotassium tert-butoxideHCID 23665647—
Product4-Bromo-2-methyl-1-(2-methylprop-1-en-1-yl)benzeneHCID 68524729—

Reaction Steps

The crude product of the title compound was synthesized by conducting the similar reaction to that mentioned in Example 23 (23d) using isopropyltriphenylphosphonium iodide (7.2 g, 17 mmol), potassium t-butoxide (2.0 g, 18 mmol), and 4-bromo-2-methylbenzaldehyde (2.4 g, 12 mmol) that was obtained in Example 27 (27b). Subsequently, the crude product of the title compound thus obtained was purified by chromatography on a silica gel column using a mixed solvent of ethyl acetate and hexane (0:10 to 6:94) as the eluent to afford the title compound (2.2 g) in a yield of 84% as a colourless oily product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07687491B2
Source datasetuspto-grants-2010_03
ORD IDord-962653be1ae44e2ba1358c987d00f498
Source noteuspto-grants-2010_03