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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249762Generated: October 27, 2026

Sodium Carbonate → 7-Benzyl-3-pentyl-3,7-dihydro-1H-purine-2,6-dione

https://huagongshe.com/reaction/249762

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant1-IodopentaneHCID 12335—
Reactant7-Benzyl-1H-purine-2,6(3H,7H)-dioneHCID 12500507—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product7-Benzyl-3-pentyl-3,7-dihydro-1H-purine-2,6-dioneHCID 5985385344%

Reaction Conditions

Temperature40 °C

Reaction Steps

7-Benzyl-3,7-dihydro-1H-purine-2,6-dione (5.0 g, 21 mmol) was mixed with sodium carbonate (3.3 g, 31 mmol) and 1-iodopentane (4.0 mL, 31 mmol) in DMF (60 mL). After being stirred at 40° C. for 18 h, the reaction mixture was diluted with water and EtOAc. The aqueous layer was extracted with EtOAc twice. The combined organic layers were dried, filtered and concentrated. The resulting white solid was collected and dried in vacuum oven at 50° C. for 18 h to provide the desired product (2.84 g, 44% yield). LCMS calculated for C17H21N4O2(M+H): 313.2. found: 313.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863285B2
Source datasetuspto-grants-2011_01
ORD IDord-95f15adcd3274c0687acf6b809a83c71
Source noteuspto-grants-2011_01