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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2427572Generated: October 26, 2026

Phthalimidine → 2-(1-Oxo-1,3-dihydro-isoindol-2-ylmethyl)-benzonitrile

https://huagongshe.com/reaction/2427572

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalimidineHCID 10199—
ReactantCesium carbonateHCID 10796—
Reactant18-Crown-6HCID 28557—
Reactant2-(Bromomethyl)benzonitrileHCID 89599—
SolventAcetoneHCID 180—
SolventHexaneHCID 8058—
SolventEthyl AcetateHCID 8857—
Product2-(1-Oxo-1,3-dihydro-isoindol-2-ylmethyl)-benzonitrileHCID 5794963744.3%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 2,3-dihydro-isoindol-1-one (0.066 g, 0.5 mmol,), 2-bromomethyl-benzonitrile (0.117 g, 0.6 mmol), Cs2CO3 (0.408 g, 1.25 mmol), and 18-crown-6 (0.013 g, 0.05 mmol) in acetone (3 mL) was stirred at 70° C. for 16 h. Workup and silica gel column chromatography using 30% ethyl acetate in hexane afforded 2-(1-oxo-1,3-dihydro-isoindol-2-ylmethyl)-benzonitrile (0.055 g, 44%). 1H NMR (300 MHz, CDCl3): δ (ppm) 4.22 (s, 2H), 5.08 (s, 2H), 7.28-7.70 (m, 7H), 7.92 (d, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968570B2
Source datasetuspto-grants-2011_06
ORD IDord-ede20995f90c4ad390d82b15e5b568d8
Source noteuspto-grants-2011_06