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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1186958Generated: October 27, 2026

Allyltributylstannane → 4-methyl-5-prop-2-en-1-yl-2-benzofuran-1(3H)-one

https://huagongshe.com/reaction/1186958

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAllyltributylstannaneHCID 90628—
ReactantLithium ChlorideHCID 433294—
Reactant5-Bromo-4-methylisobenzofuran-1(3H)-oneHCID 59568711—
CatalystHCID 178418397HCID 178418397—
SolventTolueneHCID 1140—
Product4-methyl-5-prop-2-en-1-yl-2-benzofuran-1(3H)-oneHCID 66646536—

Reaction Steps

A mixture of 5-bromo-4-methyl-2-benzofuran-1(3H)-one (980 mg, 4.3 mmol), allyl-tributyl-stannane (1.7 g, 5.2 mmol), LiCl (550 mg, 12.9 mmol) and Pd(PPh3)4 (0.1 g) in anhydrous toluene was stirred at reflux under N2 overnight. The solvent was removed under reduced pressure, and the residue was purified with silica gel column chromatography to give the product 4-methyl-5-prop-2-en-1-yl-2-benzofuran-1(3H)-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673920B2
Source datasetuspto-grants-2014_03
ORD IDord-9952fa6176f449ba8b1e561c8fd0bc65
Source noteuspto-grants-2014_03