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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443028Generated: October 25, 2026

Benzhydrylpiperazine → N,4-dibenzhydrylpiperazine-1-carboxamide

https://huagongshe.com/reaction/1443028

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 numberUS07659395B2
Source datasetuspto-grants-2010_02
ORD IDord-4452358e933c4c319b35b8e449762168
Source noteuspto-grants-2010_02