Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1284569Generated: October 25, 2026

N-(Aminocarbonyl)-2-thiophenecarboxamide → 1-[1-(Naphth-2-ylmethyl)piperid-4-yl]-3-(then-2-oyl)urea

https://huagongshe.com/reaction/1284569

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(Aminocarbonyl)-2-thiophenecarboxamideHCID 395032—
Reactant4-Amino-1-(2-naphthyl)methylpiperidineHCID 11195823—
SolventPyridineHCID 1049—
Product1-[1-(Naphth-2-ylmethyl)piperid-4-yl]-3-(then-2-oyl)ureaHCID 12942334—

Reaction Steps

4-Amino-1-(naphth-2-ylmethyl)piperidine (1.0 g, 0.0047 m) and 1-(then-2-oyl)urea (0.65 g, 0.0042 m) in pyridine (5 cm3) was refluxed for 9.5 hours. The solvent was evaporated, water added, and the precipitated title compound filtered and washed well with water. This was recrystallised from ethanol, converted to the hydrochloride salt in ethanol with ethanolic HCl, and recrystallised from ethanol, 0.5 g, at the hydrochloride, m.p. 217°-219° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04563466
Source datasetuspto-grants-1986_01
ORD IDord-0e3f17421eeb405881d10764a3a81c41
Source noteuspto-grants-1986_01