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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858760Generated: October 26, 2026

Sodium Iodide → 3-Benzyl-6-cyclopentyl-6-[2-(4-methoxyphenyl)ethyl]tetrahydropyran-2,4-dione

https://huagongshe.com/reaction/858760

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium IodideHCID 5238—
ReactantBenzyl BromideHCID 7498—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant6-(4-methoxyphenethyl)-6-cyclopentyl-dihydro-3H-pyran-2,4-dioneHCID 16076102—
SolventBenzeneHCID 241—
Product3-Benzyl-6-cyclopentyl-6-[2-(4-methoxyphenyl)ethyl]tetrahydropyran-2,4-dioneHCID 1672884912.7%

Reaction Steps

DBU (28.6 ul, 0.191 mmol) was added to a solution of 6-cyclopentyl-6-[2-(4-methoxyphenyl)ethyl]dihydro-2H-pyran-2,4(3H)-dione (55 mg, 0.174 mmol, described below) in benzene (1.9 ml), under an atmosphere of argon. Benzyl bromide (21 ul, 0.174 mmol) was then added. The reaction mixture was stirred at room temperature for 20 minutes, followed by the addition of 5 crystals of sodium iodide. The reaction mixture was stirred for a further 24 hrs, after which time the mixture was filtered through a plug of Celite. The filtrate was concentrated in vacuo and the residue purified by prep HPLC to afford the title compound as a white solid (9.0 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148226B2
Source datasetuspto-grants-2006_12
ORD IDord-af6972a4569a4c22877022462b2e6f6e
Source noteuspto-grants-2006_12