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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1458774Generated: November 2, 2026

Hydrochloric Acid → HCID 57040738, compound

https://huagongshe.com/reaction/1458774

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantp-FluoronitrobenzeneHCID 9590—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 53849828HCID 53849828—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 57040738HCID 5704073884.3%

Reaction Conditions

Temperature95 °C

Reaction Steps

A mixture of 0.500 g (1.89 mmol) of (7R,9aS)-7-(4-fluorophenoxy)methyl-2,3,4,6,7,8,9,9a-octahydro-1H-pyrido[1,2-a]pyrazine (Preparation 8), 0.400 g (2.84 mmol) of 4-fluoronitrobenzene and 0.401 g (3.78 mmol) of sodium carbonate in 15 mL of DMSO was heated at 95° C. for 16 h. The mixture was cooled to room temperature, acidified with 1M HCl, washed with ethyl ether (3×), basified with conc. ammonium hydroxide and extracted with ethyl acetate (3×). The combined organic layers were washed with water and brine, dried (magnesium sulfate), filtered and evaporated to give 0.614 g of (7R,9aS)-7-(4-fluorophenoxy)methyl-2-(4-nitrophenyl)-2,3,4,6,7,8,9,9a-octahydro-1H-pyrido[1,2-a]pyrazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05852031
Source datasetuspto-grants-1998_12
ORD IDord-d9451f317a474454b235cf679e31bd09
Source noteuspto-grants-1998_12