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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 619776Generated: November 2, 2026

Phthalic Anhydride → Phthalimide

https://huagongshe.com/reaction/619776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantTriethylamineHCID 8471—
SolventTolueneHCID 1140—
ProductPhthalimideHCID 6809—

Reaction Conditions

Temperature20 °C

Reaction Steps

0.8 g of phthalic anhydride and 2 ml of triethylamine were added to a solution of 3 g of the product of Stage B in 30 ml of toluene and then the mixture was heated for 16 hours at reflux. The reaction medium was cooled to 20° C. and washed with 20 ml of N hydrochloric acid. After decanting, washing with water and drying, the solvent was evaporated off to obtain 4.42 g of the expected product which was used as is for the following stage.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05959146
Source datasetuspto-grants-1999_09
ORD IDord-cf1f217966e04ea4ad73327e864d94d7
Source noteuspto-grants-1999_09