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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973887Generated: November 2, 2026

Methane → HCID 21490747, compound

https://huagongshe.com/reaction/1973887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantIsopropylamineHCID 6363—
ReactantHCID 21490818HCID 21490818—
SolventEthanolHCID 702—
ProductHCID 21490747HCID 21490747—

Reaction Steps

A mixture of 4,5-dimethylhomophthalic acid (104 g., 0.5 mole) and isopropylamine (59 g., 1 mole) is heated by an oil bath until molten for 90 minutes. The hot mixture is then poured into 600 ml. of ethanol, treated with carbon black and filtered. The mixture is concentrated to about 300 ml. and slowly cooled to room temperature. 2-Isopropyl-6,7-dimethylisoquinoline-1,3(2H,4H)-dione precipitates and is collected by filtration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03998954
Source datasetuspto-grants-1976_12
ORD IDord-c6d687b01fe5471d80c75f530f4b0605
Source noteuspto-grants-1976_12