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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2034Generated: October 25, 2026

1-Bromo-3-methylbutane → 7-(3-Methylbutyl)-3-methylxanthine

https://huagongshe.com/reaction/2034

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-3-methylbutaneHCID 7891—
ReactantSodium hydrideHCID 24758—
Reactant3-MethylxanthineHCID 70639—
ReactantHCID 178418361HCID 178418361—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product7-(3-Methylbutyl)-3-methylxanthineHCID 19689144—

Reaction Conditions

Temperature60 °C

Reaction Steps

100 g (0.602 mol) of 3-methylxanthine, dissolved in 1200 ml of DMF, were slowly treated with 16 g (0.66 mol) of sodium hydride. The solution was heated to 60° C. and, when the evolution of hydrogen was at an end, treated with 109 g (0.66 mol) of 1-bromo-3-methylbutane. The reaction mixture was stirred at 100° C. for 12 hours and introduced into 2000 ml of water. The precipitate was filtered off with suction, washed with water and dried to constant weight.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05728686
Source datasetuspto-grants-1998_03
ORD IDord-53dbbec3515e46f1bf52497ce7ab8115
Source noteuspto-grants-1998_03