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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1157326Generated: November 2, 2026

Sodium hydride → HCID 59511251, compound

https://huagongshe.com/reaction/1157326

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantMorpholine, 4-(2-chloroethyl)-, hydrochloride (1:1)HCID 77210—
ReactantHCID 178452251HCID 178452251—
SolventDimethylformamideHCID 6228—
ProductHCID 59511251HCID 59511251—

Reaction Conditions

Temperature0 °C

Reaction Steps

Sodium hydride (0.1 g) was taken in dry DMF (2 ml) and a solution of tert-butyl 4-(3-phenyl-1H-pyrazol-4-yl)piperazine-1-carboxylate (0.5 g in 2 ml of DMF) was added slowly at 0° C. The reaction mixture was stirred for 30 min at 0° C. and a solution of 2-chloroethylmorpholine hydrochloride (0.3 g) in DMF (1 ml) was added very slowly. The reaction mixture was allowed to stir over night at room temperature. The reaction mixture was quenched with cold water (5 ml) and extracted with ethyl acetate (3×40 ml). Evaporation of solvent under reduced pressure gave crude product, which, was purified by column chromatography using ethyl acetate/hexane (2:8) as eluent to afford compound tert-butyl 4-(1-(2-morpholinoethyl)-3-phenyl-1H-pyrazol-4-yl)piperazine-1-carboxylate as pure solid product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07807671B2
Source datasetuspto-grants-2010_10
ORD IDord-9f76d39a1d59466d85fd79645044506b
Source noteuspto-grants-2010_10