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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 506870Generated: November 3, 2026

Piperidine → HCID 66917516, compound

https://huagongshe.com/reaction/506870

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantOxindoleHCID 321710—
Reactant5-Bromo-2-methoxypyridine-3-carbaldehydeHCID 1516403—
SolventEthanolHCID 702—
ProductHCID 66917516HCID 6691751655.5%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of indolinone (130 mg, 0.98 mmol) in ethanol (5 mL) was added 5-bromo-2-methoxypyridine-3-carbaldehyde (J. Het. Chem, 1985, (22), 1583-1592) (200 mg, 0.98 mmol, 1 eq), followed by piperidine (0.194 mL, 1.9 mmol, 2 eq). The reaction mixture was heated at 80° C. for 2 hours and then allowed to cool to room temperature. The precipitate that formed was collected by filtration and washed with ethanol to give the title compound (180 mg, 55%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07786120B2
Source datasetuspto-grants-2010_08
ORD IDord-0ee0ad3c1fab443bba53b27ed98081dd
Source noteuspto-grants-2010_08