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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1989875Generated: November 1, 2026

Ammonium Hydroxide → 4-[1,2,3,6-Tetrahydro-1-(phenylmethyl)-4-pyridinyl]benzenamine

https://huagongshe.com/reaction/1989875

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
Reactant1-Benzyl-4-(p-bromophenyl)-4-piperidinol hydrochlorideHCID 17989468—
Product4-[1,2,3,6-Tetrahydro-1-(phenylmethyl)-4-pyridinyl]benzenamineHCID 22499416—

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of 1-benzyl-4-(p-bromophenyl)-4-piperidinol hydrochloride (0.23 mol) and Cu2O (2 g) in NH4OH (500 ml) was stirred at 180° C. for 12 hours. The mixture was cooled, extracted with DCM and washed with water. The organic layer was dried, filtered off and evaporated, yielding 60 g of 4-[1,2,3,6-tetrahydro-1-(phenylmethyl)-4-pyridinyl]benzenamine (intermediate 47).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07642378B2
Source datasetuspto-grants-2010_01
ORD IDord-e8435a6da6864c6d8cfa026bdcdee4e2
Source noteuspto-grants-2010_01