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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1964356Generated: October 30, 2026

5-ethyl-6-nitro-2,3-dihydro-1H-indole → 5-ethyl-6-nitro-1H-indole

https://huagongshe.com/reaction/1964356

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-ethyl-6-nitro-2,3-dihydro-1H-indoleHCID 57470205—
CatalystManganese dioxideHCID 14801—
SolventDichloromethaneHCID 6344—
Product5-ethyl-6-nitro-1H-indoleHCID 57470206100.9%

Reaction Steps

To a solution of 5-ethyl-6-nitroindoline (1.9 g, 9.9 mmol) in CH2Cl2 (30 mL) was added MnO2 (4.0 g, 46 mmol). The mixture was stirred at ambient temperature for 8 h. The solid was filtered off and the filtrate was concentrated to dryness to give 5-ethyl-6-nitro-1H-indole (1.9 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08415387B2
Source datasetuspto-grants-2013_04
ORD IDord-ce31ebb4758840f8a682c62e5b32138e
Source noteuspto-grants-2013_04