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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2304753Generated: October 31, 2026

Malic Acid → HCID 131723443, compound

https://huagongshe.com/reaction/2304753

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalic AcidHCID 525—
ReactantTolueneHCID 1140—
Reactant2-EthylhexylamineHCID 7719—
ProductHCID 131723443HCID 131723443—

Reaction Conditions

Temperature100 °C

Reaction Steps

N-2-Ethylhexyl DL-malimide was prepared by the reaction of 2-ethylhexyl amine with DL-malic acid. DL-Malic acid (10.327 g, 77.015 mmole) and toluene (40 mL) were weighed into a 250 mL 3-necked round-bottomed flask equipped with a teflon-coated magnetic stir bar. A Claisen adapter was placed in the center neck, a Dean-Stark trap was placed on top of the Claisen adapter, and a condenser was placed in the neck of the Dean-Stark trap. A nitrogen inlet adapter was placed on the condenser. In the left neck was placed a pressure-equalizing addition funnel containing 2-ethylhexyl amine (9.955 g, 77.02 mmole) and toluene (10 mL, added to ensure complete transfer of the amine). In the right neck was placed a rubber septum which held a thermocouple. The apparatus was purged with nitrogen for 10-15 minutes and then heated to ˜100° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06437009B1
Source datasetuspto-grants-2002_08
ORD IDord-0ce9d8bc85bd4c578b5e1bc65da6f803
Source noteuspto-grants-2002_08