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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 572829Generated: October 24, 2026

1H-Benzimidazole-2-carboxaldehyde → (1H-benzimidazol-2-ylmethylene)(1-methylpiperidin-4-yl)amine

https://huagongshe.com/en/reaction/572829

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Benzimidazole-2-carboxaldehydeHCID 76826—
Reactant4-Amino-1-methylpiperidineHCID 2737531—
SolventEthanolHCID 702—
Product(1H-benzimidazol-2-ylmethylene)(1-methylpiperidin-4-yl)amineHCID 136335844—

Reaction Steps

1H-Benzimidazole-2-carboxaldehyde (781 mg, can be prepared according to Fegy, K. Angewandte Chemie Int Ed, 1998, vol. 37, 1270-1273), 4-amino-1-methylpiperidine (781 mg) and 4 Å molecular sieves (15 g) in ethanol (100 mL) are heated under reflux for 4 h. The mixture is then filtered and the filtrate concentrated under reduced pressure to yield (1H-benzimidazol-2-ylmethylene)(1-methylpiperidin-4-yl)amine as a beige solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029357B2
Source datasetuspto-grants-2015_05
ORD IDord-09ad8afe261641bbbf1993569c1c8080
Source noteuspto-grants-2015_05