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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1992694Generated: October 25, 2026

Benzhydrylpiperazine → N,4-dibenzhydrylpiperazine-1-carboxamide

https://huagongshe.com/reaction/1992694

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzhydrylpiperazineHCID 70048—
Reactant(Isocyanatomethylene)dibenzeneHCID 4250935—
SolventDichloromethaneHCID 6344—
ProductN,4-dibenzhydrylpiperazine-1-carboxamideHCID 1011559280%

Reaction Steps

To a solution of diphenylmethyl piperazine (0.3 g, 1.18 mmol) in dry CH2Cl2 (10 ml) was added diphenylmethyl isocyanate (0.22 ml, 1.18 mmol) drop wise under nitrogen. The resulting mixture was stirred at room temperature over night. Removal of solvent under reduced pressure followed by column chromatography using hexane:ethyl acetate (3:1) gives the desired product in 80% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07649092B2
Source datasetuspto-grants-2010_01
ORD IDord-cba44ed006074b58b2bd72fdeba6cabf
Source noteuspto-grants-2010_01