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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2203187Generated: November 1, 2026

Methyl iodide → HCID 90426844, compound

https://huagongshe.com/reaction/2203187

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantCesium carbonateHCID 10796—
Reactant7-Bromo-4-methyl-1H-indazoleHCID 51342002—
SolventAcetonitrileHCID 6342—
ProductHCID 90426844HCID 90426844—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 7-bromo-4-methyl-1H-indazole (1 equiv.) in acetonitrile, Cs2CO3 (1.3 equiv.) and MeI (3 equiv.) was added and reaction was heated at 80° C. for 1.5 h. On completion, it was cooled and quenched by addition of water. Extraction was carried out using ethyl acetate. Organic layer was dried over Na2SO4 and crude compound was column purified to afford the title compound. (Polar isomer confirmed as N-2-Methyl and non-polar isomer confirmed as N-1-Methyl by NOE experimentation).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365570B2
Source datasetuspto-grants-2016_06
ORD IDord-e2875462336c45f0902793cd6e3d629e
Source noteuspto-grants-2016_06