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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 30203Erstellt: 23. Oktober 2026

Hydrochloric Acid → 2-Aminopyridinoyl-piperidine

https://huagongshe.com/de/reaction/30203

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktHydrochloric AcidHCID 313—
EduktBenzophenone imineHCID 136809—
EduktBinap, (A+-)-HCID 634876—
EduktSodium t-butoxideHCID 23676156—
Edukt2-Chloropyridinoyl-piperidineHCID 67442558—
LösungsmittelTolueneHCID 1140—
LösungsmittelTetrahydrofuranHCID 8028—
Produkt2-Aminopyridinoyl-piperidineHCID 67443361—

Reaktionsschritte

Next, the 2-chloropyridinoyl-piperidine intermediate is reacted with benzophenone imine in the presence of tris(dibenzylidineacetone)-dipalladium(0) Pd2(dba)3) as a catalyst, and 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP) and sodium t-butoxide in a suitable solvent, such as toluene, at reflux, to substitute the halo group with the benzophenone imino group. After work-up, this intermediate is typically reacted with hydrochloric acid in a suitable solvent, such as tetrahydrofuran, and then purified to give the corresponding 2-aminopyridinoyl-piperidine intermediate.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS07423050B2
Quelldatensatzuspto-grants-2008_09
ORD IDord-9b02042daf3a4b20971170c5f1a9a16c
Quellennotizuspto-grants-2008_09