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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 614832Generated: October 26, 2026

Potassium Carbonate → 2-Hydroxy-3-(4-phenoxymethylpiperidino)-propoxy-2-ethoxycarbonylindole

https://huagongshe.com/reaction/614832

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 4-hydroxy-1H-indole-2-carboxylateHCID 13274763—
ReactantN-(2,3-epoxypropyl)-4-phenoxymethylpiperidineHCID 21327287—
SolventAcetonitrileHCID 6342—
Product2-Hydroxy-3-(4-phenoxymethylpiperidino)-propoxy-2-ethoxycarbonylindoleHCID 86736429—

Reaction Steps

A mixture of 0.9 g. 2-ethoxycarbonyl-4-hydroxyindole, 1.7 g. N-(2,3-epoxypropyl)-4-phenoxymethylpiperidine, 1.2 g. potassium carbonate and 50 ml. acetonitrile is heated under reflux for 10 hours. The reaction mixture is then filtered while still hot and the filtrate left to cool overnight. 0.3 g. (15% of theory) 4-[2-hydroxy-3-(4-phenoxymethylpiperidino)-propoxy]-2-ethoxycarbonylindole crystallize out; m.p. 168°-170° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04146630
Source datasetuspto-grants-1979_03
ORD IDord-4883bb9787fb4ac084753e960ec14d99
Source noteuspto-grants-1979_03