Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 69591Generated: October 27, 2026

Piperazine → N-ethyl-4-(piperazin-1-yl)benzamide

https://huagongshe.com/reaction/69591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantN-ethyl-4-fluorobenzamideHCID 4693101—
ProductN-ethyl-4-(piperazin-1-yl)benzamideHCID 2874959077%

Reaction Steps

Using N-ethyl-4-fluorobenzamide in the general procedure for nucleophilic aromatic substitution reactions with piperazine, the title compound was obtained (77% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.10 (t, J=7.07 Hz, 3 H) 2.25 (br. s., 1 H) 2.76-2.86 (m, 4 H) 3.09-3.18 (m, 4H) 3.21-3.28 (m, 2 H) 6.90 (m, J=8.84 Hz, 2 H) 7.67-7.75 (m, 2 H) 8.11 (t, J=5.31 Hz, 1 H). ESI-MS: m/z 234.2 (M+H)+. mp=131.3-134.4° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822470B2
Source datasetuspto-grants-2014_09
ORD IDord-58c49c44c11643dbb717aee78d1928f3
Source noteuspto-grants-2014_09