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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1296945Generated: October 29, 2026

Dimethyl Ether → HCID 178488689, compound

https://huagongshe.com/reaction/1296945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl EtherHCID 8254—
ReactantBoron TrichlorideHCID 25135—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 58913495HCID 58913495—
SolventDichloromethaneHCID 6344—
ProductHCID 178488689HCID 178488689—

Reaction Steps

5-[4-(4-Methoxy-phenyl)-5-methyl-2-(2-trimethylsilanyl-ethoxymethyl)-2H-pyrazol-3-yl]-pyrimidin-2-ylamine was dissolved in anhydrous dichloromethane under nitrogen. 2M borontrichloride.dimethylether in dichloromethane (7 eq) was added dropwise, and all was stirred for 2 hours. The reaction mixture was added dropwise to sat. NaHCO3(aq) and extracted into dichloromethane. The organic phase was dried over MgSO4, filtered and concentrated in vacuo. The residue was purified by preparative LC/MS to give 5-[4-(4-methoxy-phenyl)-5-methyl-2H-pyrazol-3-yl]-pyrimidin-2-ylamine as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07247734B2
Source datasetuspto-grants-2007_07
ORD IDord-455d484964a3435bb8ae951d7731bec7
Source noteuspto-grants-2007_07