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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 230544Generated: November 1, 2026

Ammonium Chloride → 3-(4-Nitrophenyl)-1H-indole-2-carboxamide

https://huagongshe.com/reaction/230544

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactantethyl 3-(4-nitrophenyl)-1H-indole-2-carboxylateHCID 12404967—
SolventAmmoniaHCID 222—
Product3-(4-Nitrophenyl)-1H-indole-2-carboxamideHCID 57762841—

Reaction Conditions

Temperature125 °C

Reaction Steps

A solution of 0.5 g of ammonium chloride in 30 ml of concentrated aqueous ammonia is added to a solution of 3.3 g of ethyl 3-(4-nitrophenyl)-1H-indole-2-carboxylate in 50 ml of 7N methanolic ammonia. The solution is then heated in a sealed tube at 125° C. for 15 hours. After cooling, the solid formed is filtered off, washed with water, and then filter-dried. After drying under vacuum, 1.5 g of 3-(4-nitrophenyl)-1H-indole-2-carboxamide are obtained, the characteristics of which are as follows:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07566736B2
Source datasetuspto-grants-2009_07
ORD IDord-2e700df9130f4fd5b2bcab143a87adda
Source noteuspto-grants-2009_07