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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2396381Generated: November 2, 2026

Carbon Dioxide → HCID 21460704, compound

https://huagongshe.com/reaction/2396381

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon DioxideHCID 280—
ReactantPotassium CarbonateHCID 11430—
ReactantStannous chloride dihydrateHCID 61436—
ReactantHCID 21460723HCID 21460723—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
SolventEthyl AcetateHCID 8857—
ProductHCID 21460704HCID 21460704—

Reaction Steps

Dissolve 3-nitro-2-carbethoxy-5,6-dichloroindole (38.1 g) in ethanol (1L) and add tin (II) chloride dihydrate (163 g). Warm to between 65° and 75° C. for 4 to 5 hours. Cool to room temperature and pour intoa mixture of ethyl acetate (3L) and water (2L). Add solid potassium carbonate and stir occasionally until the carbon dioxide evolution ceases.Filter through diatomaceous earth and separate the organic phase of the filtrate. Dry (MgSO4) and evaporate the solvent in vacuo to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05491153
Source datasetuspto-grants-1996_02
ORD IDord-80866b6cba0449f29cd8f3929c42d079
Source noteuspto-grants-1996_02