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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1348519Generated: November 1, 2026

Piperidine → HCID 73446801, compound

https://huagongshe.com/reaction/1348519

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant(2-tert-Butyl-6-methyl-4H-pyran-4-ylidene)propanedinitrileHCID 15374739—
Reactant5-[4-(Diphenylamino)phenyl]thiophene-2-carbaldehydeHCID 18458010—
SolventEthanolHCID 702—
ProductHCID 73446801HCID 7344680150%

Reaction Steps

As shown in the following reaction 3, 0.72 g (3.37 mmol) of (2-(2-tert-butyl-6-methyl-pyran-4-ylidene)-malononitrile and 1 g (2.81 mmol) of 5-(4-diphenylamino-phenyl)-thiophene-2-carbaldehyde were added into 50 ml of ethanol, and 0.28 g (3.37 mmol) of piperidine was added thereto. The reaction solution was heated for 24 hours while refluxing. After cooling the reaction solution, the precipitated red solid was filtered, and recrystallized with ethanol to obtain 0.79 g of the target compound (Yield 50%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211335B2
Source datasetuspto-grants-2007_05
ORD IDord-dd590dc6069b484bbd50972ff09490a8
Source noteuspto-grants-2007_05