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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 534917Generated: November 1, 2026

Phenyl isocyanate → HCID 66750951, compound

https://huagongshe.com/reaction/534917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant1-(2-Tert-butylphenyl)piperazine dihydrochlorideHCID 66751149—
SolventPyridineHCID 1049—
ProductHCID 66750951HCID 6675095167.2%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a stirred solution of 1-(2-tert-butylphenyl)piperazine dihydrochloride (0.120 g, 0.41 mmol) in pyridine (4.0 mL) was added phenyl isocyanate (0.055 g, 0.46 mmol) and the reaction mixture was heated to 50° C. After 18 h the reaction mixture was concentrated under reduced pressure and the residue was purified by flash column chromatography (silica gel, 90:10 to 0:100 heptane/ethyl acetate, gradient elution) to provide 4-(2-tert-butylphenyl)-N-phenylpiperazine-1-carboxamide (0.093 g, 67%) as an off-white solid, mp 68-72° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853215B2
Source datasetuspto-grants-2014_10
ORD IDord-b607fdd6bf0341c2b72b7bbd3a7bc67c
Source noteuspto-grants-2014_10