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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973890Generated: November 2, 2026

Methane → HCID 21490831, compound

https://huagongshe.com/reaction/1973890

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantIsopropylamineHCID 6363—
ReactantHCID 131710580HCID 131710580—
SolventEthanolHCID 702—
ProductHCID 21490831HCID 21490831—

Reaction Steps

A mixture of tetrahydrohomophthalic acid (92 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-Isopropylisoquinoline-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-4aa7799fd86e4136903dd0000f01f3b5
Source noteuspto-grants-1976_12