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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1659177Generated: November 2, 2026

Water → HCID 21516782, compound

https://huagongshe.com/reaction/1659177

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 21516783HCID 21516783—
SolventDimethylformamideHCID 6228—
ProductHCID 21516782HCID 21516782—

Reaction Steps

A stirred solution of 2-ethyl-4,5-dichloro-6-methoxyindan-1,3-dione (1.3 g.) in dimethylformamide (15 ml.) is treated with potassium carbonate (1.26 g.) and metyl iodide. After 15 minutes, the reaction is poured into water (75 ml.) affording 1.3 g. of 2-ethyl-2-methyl-4,5-dichloro-6-methoxyindan-1,3-dione which melts at 157°C. after recrystallization from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03966966
Source datasetuspto-grants-1976_06
ORD IDord-e169ab2fb667430abc861c7f4d125a81
Source noteuspto-grants-1976_06