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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 231773Generated: October 30, 2026

3-(Piperazin-1-yl)propane-1,2-diol → HCID 53919102, compound

https://huagongshe.com/reaction/231773

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Piperazin-1-yl)propane-1,2-diolHCID 111002—
ReactantEthyl 3-chloropyridazine-4-carboxylateHCID 14542887—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 53919102HCID 53919102—

Reaction Steps

Grams 10.2 of 1-(2,3-dihydroxypropyl)piperazine and 5.9 g of 3-chloropyridazine-4-carboxylic acid ethyl ester in 100 ml dioxane were refluxed for one hour. Then it was settled, the solvent evaporated till dryness, and the residue dissolved in chloroform and washed with a small amount of water. The organic phase was made anhydrous, evaporated to dryness and the residue, purified on a column eluting with chloroform:methanol (9:1), gave 2.4 g of 3-[4-(2,3-dihydroxypropyl)piperazin-1-yl]pyridazine-4-carboxylic acid ethyl ester as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04849422
Source datasetuspto-grants-1989_07
ORD IDord-7010d4b1e0674f76814e94d9b2c9846a
Source noteuspto-grants-1989_07