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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 622394Generated: November 1, 2026

4-Chlorophenyl Isocyanate → HCID 13934776, compound

https://huagongshe.com/reaction/622394

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chlorophenyl IsocyanateHCID 7693—
Reactant2-Methyl-3-(1-piperazinyl)-1,4-naphthalenedioneHCID 13718584—
SolventTetrahydrofuranHCID 8028—
ProductHCID 13934776HCID 1393477683.4%

Reaction Steps

A solution of 150 mg of 3-methyl-2-piperazinyl-1,4-naphthoquinone in 50 ml of tetrahydrofuran was treated with a solution of 100 mg of 4-chlorophenylisocyanate in 10.ml of tetrahydrofuran. This mixture was stirred 1/2 hour, then evaporated in vacuo and the residue taken up in dichloromethane and filtered. The filtrate was evaporated and the residue recrystallized from dichloromethane/hexane, giving 200 mg of the desired product, mp 190-192°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04771061
Source datasetuspto-grants-1988_09
ORD IDord-2dc521f09db340ddb2fa7cc97c8017fa
Source noteuspto-grants-1988_09