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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1656596Generated: October 31, 2026

Dimethylformamide → N-2-(4-nitrophenoxy)ethyl-4-(4-nitrophenoxy)piperidine

https://huagongshe.com/reaction/1656596

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(2-Bromoethoxy)-4-nitrobenzeneHCID 235987—
Reactant4-(4-Nitrophenoxy)piperidine hydrochlorideHCID 22591401—
SolventDichloromethaneHCID 6344—
ProductN-2-(4-nitrophenoxy)ethyl-4-(4-nitrophenoxy)piperidineHCID 1978872380%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of 4-(4-nitrophenoxy)piperidine hydrochloride (1.15 g, 5.80 mmol), 1-bromo-2-(4-nitrophenoxy)ethane (1.43 g, 5.80 mmol), K2CO3 (1.60 g, 11.80 mmol), and DMF (15 mL) was heated at 90° C. for 6 hours. The mixture was cooled, diluted with CH2Cl2, and washed with water. The organic phase was dried (MgSO4) and concentrated to give 1.70 g (80%) of N-2-(4-nitrophenoxy)ethyl-4-(4-nitrophenoxy)piperidine as a yellow solid. 1H NMR (DMSO-d6): δ 8.10 (m, 4H), 7.05 (d, 4H), 4.60 (m, 1H), 4.15 (t, 2H), 2.78 (m, 4H), 2.40 (t, 2H), 1.95 (m, 2H), 1.65 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05254689
Source datasetuspto-grants-1993_10
ORD IDord-f4a687344b824e449e7b500a083f4aae
Source noteuspto-grants-1993_10