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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1454943Generated: October 31, 2026

2-Butene, 1-bromo-3-methyl- → 3-Methyl-7-(3-methyl-2-buten-1-yl)-8-bromo-xanthine

https://huagongshe.com/reaction/1454943

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butene, 1-bromo-3-methyl-HCID 70092—
ReactantDiisopropylethylamineHCID 81531—
Reactant8-bromo-3-methyl-3,7-dihydro-1H-purine-2,6-dioneHCID 1548797—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product3-Methyl-7-(3-methyl-2-buten-1-yl)-8-bromo-xanthineHCID 3435331—

Reaction Steps

15.37 ml of Hünig base and 9.98 ml of 3,3-dimethylallylbromide are added to 20.00 g of 3-methyl-8-bromo-xanthine in 200 ml of N,N-dimethylformamide. The reaction mixture is stirred for about half an hour at ambient temperature and then diluted with 500 ml of water. The precipitate formed is suction filtered, washed with water and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07482337B2
Source datasetuspto-grants-2009_01
ORD IDord-93900dfb86194afaabba172dc53d163e
Source noteuspto-grants-2009_01