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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1362308Generated: October 26, 2026

Diethyl Malonate → HCID 53396436, compound

https://huagongshe.com/reaction/1362308

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl MalonateHCID 7761—
ReactantPiperidineHCID 8082—
Reactant2-Amino-5-bromo-3-pyridinecarbaldehydeHCID 24213792—
SolventEthanolHCID 702—
ProductHCID 53396436HCID 5339643657.1%

Reaction Steps

A mixture of 2-amino-5-bromo-pyridine-3-carbaldehyde (4.00 g, 14.2 mmol), diethyl malonate (21.6 mL, 142 mmol) and piperidine (7.00 mL, 71.0 mmol) in EtOH (70 mL) was heated to reflux overnight. The mixture was cooled to room temperature and the solid was collected by filtration to give the title compound (2.41 g, 57%) as an off-white solid: 1H NMR (300 MHz, CDCl3) δ 12.65 (s, 1H), 8.70 (d, J=2.4 Hz, 1H), 8.56 (d, J=2.4 Hz, 1H), 8.45 (s, 1H), 4.29 (q, J=7.1 Hz, 2H), 1.30 (t, J=7.1 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07879872B2
Source datasetuspto-grants-2011_02
ORD IDord-1e972c7186354cd485e2c54c55fe2396
Source noteuspto-grants-2011_02