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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820745Generated: October 30, 2026

Methyl iodide → 2-Methyl-5-(4-bromophenyl)tetrazole

https://huagongshe.com/reaction/1820745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantDichloromethaneHCID 6344—
ReactantSodium HydroxideHCID 14798—
Reactant5-(4-Bromophenyl)-1H-tetrazoleHCID 766141—
CatalystTetrabutylammonium BromideHCID 74236—
SolventWaterHCID 962—
Product2-Methyl-5-(4-bromophenyl)tetrazoleHCID 610977—

Reaction Steps

A mixture of 3.5 mmol of 5-(4-bromo-phenyl)-2H-tetrazole, 0.2 mmol of tetrabutyl ammonium bromide, 4.4 mmol of methyl iodide, 6 ml of 1M aqueous sodium hydroxide and 6 ml of dichloromethane were stirred at room temperature for 24 hours. The reaction mixture was diluted with water and extracted with ethyl acetate. The organic phase was dried, evaporated and the product purified by column chromatography (SiO2; cyclohexane/ethyl acetate 7:3). MS (m/e): 239.1 (MH+, 29%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605163B2
Source datasetuspto-grants-2009_10
ORD IDord-70004881b1454346929063ab3147128b
Source noteuspto-grants-2009_10