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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1196497Generated: October 30, 2026

Methylamine → HCID 19898803, compound

https://huagongshe.com/reaction/1196497

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantHCID 19898805HCID 19898805—
SolventTetrahydrofuranHCID 8028—
ProductHCID 19898803HCID 19898803—

Reaction Steps

A suspension of 3.0 g (0.011 mole) of 5,7-dimethyl-2-phenylpyrazolo[1,5-a]pyrimidine-3-acetic acid and 1.73 g (0.011 mole) of 1,1'-carbonyldiimidazole in 120 ml of anhydrous tetrahydrofuran was stirred at room temperature for 4 hours while a stream of nitrogen was bubbled through the mixture. The clear solution which formed was treated with a solution of monomethylamine in tetrahydrofuran (12.8 ml; 0.033 mole; 2.59M) and the mixture stirred at room temperature for 17 hours under nitrogen.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05114944
Source datasetuspto-grants-1992_05
ORD IDord-cb1e1393aab744ec9ba764ff1451d38f
Source noteuspto-grants-1992_05