Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 235122Generated: October 31, 2026

Phenyl isocyanate → HCID 18967544, compound

https://huagongshe.com/reaction/235122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant7-Amino-1-(4-methyl-1-piperazinyl)-naphthaleneHCID 23353484—
SolventAcetonitrileHCID 6342—
ProductHCID 18967544HCID 1896754462.5%

Reaction Steps

7-Amino-1-(4-methyl-1-piperazinyl)-naphthalene (0.216 g, 0.896 mmol) and phenyl isocyanate (0.222 g, 1.86 mmol) were combined in acetonitrile (14 mL) and refluxed overnight. Phenyl isocyanate (0.106 g, 0.896 mmol) was added and the reaction was refluxed 2 hours more. Upon cooling a tan solid precipitated which was collected and recrystallized from methanol/ethyl acetate to give 0.202 g (62%) of the title product; mp 213°-214° C. Analysis calculated for C22H24N4O: C, 73.31; H, 6.71; N, 15.54. Found: C0 73.03; H, 6.55; N, 15.22.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05597826
Source datasetuspto-grants-1997_01
ORD IDord-3657ca6388ac45dd948128ce5a8e346d
Source noteuspto-grants-1997_01