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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 842305Generated: October 26, 2026

Ammonia → Naphthalimide

https://huagongshe.com/reaction/842305

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantNaphthalic anhydrideHCID 6693—
ProductNaphthalimideHCID 66491—

Reaction Steps

U.S. Pat. No. 3,812,130 describes reacting solid 1,8-naphthalic anhydride with gaseous ammonia to produce 1,8 naphthalimide. The product is isolated directly by evaporating off the water. Although this procedure minimizes waste water, it still requires a pressure vessel and has the disadvantage of not allowing for any water soluble impurities or unreacted starting material to be removed after the reaction. Thus, a potentially impure product is produced.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06372910B1
Source datasetuspto-grants-2002_04
ORD IDord-952a21b2314347f4904bb86a4a3d3153
Source noteuspto-grants-2002_04