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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1781405Generated: October 30, 2026

Potassium Carbonate → HCID 86746768, compound

https://huagongshe.com/reaction/1781405

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,4-Dioxa-8-azaspiro(4.5)decaneHCID 67435—
Reactant4-Nitrophenethyl bromideHCID 79266—
SolventAcetonitrileHCID 6342—
ProductHCID 86746768HCID 86746768—

Reaction Conditions

Temperature0 °C

Reaction Steps

1,4-Dioxa-8-azaspiro[4.5]-decane (18.62 g, 130 mmoles) in 50 mL of acetonitrile was stirred under argon and treated with anhydrous potassium carbonate (27.60 g, 200 mmoles). The mixture was cooled to 0° C. and 2-(4-nitrophenyl)ethylbromide (23.01 g, 100 mmoles) was added in one portion. After 10 minutes, the ice bath was removed and the reaction was stirred for 14 hrs at room temperature. The mixture was diluted with 220 mL of ethyl acetate and 200 mL of water. The aqueous phase was separated, the organic phase washed with water (3×100 mL), and brine (2×50 mL). The organic portion was dried (Na2SO4), filtered, and concentrated to give 28.60 g (98%) of N(2-(4-nitrophenyl)ethyl-1,4-dioxa-8-azaspiro [4.5]-decane as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05633247
Source datasetuspto-grants-1997_05
ORD IDord-310c58e7bbc14872a5a2fd0b11d6f844
Source noteuspto-grants-1997_05