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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 19723Generated: October 23, 2026

2-Aminoindane → 2,3,4,7-tetrahydro-1H-inden-2-ylamine

https://huagongshe.com/en/reaction/19723

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminoindaneHCID 76310—
ReactantLithiumHCID 3028194—
SolventAmmoniaHCID 222—
Product2,3,4,7-tetrahydro-1H-inden-2-ylamineHCID 55285636—

Reaction Conditions

Temperature-78 °C

Reaction Steps

Liquid ammonia (80 ml) is condensed at −78° C. and 2-aminoindane (2 g, 15 mmol) is added, followed by lithium wire (2 g, 300 mmol) portionwise over 5 minutes. The reaction is stirred at −78° C. for 2 hours, then cautiously quenched with ethanol (100 ml) and warmed to ambient temperature overnight. Water is added, the mixture is extracted with ether and the combined organic extracts are washed with brine, dried (MgSO4) and evaporated to afford 2,3,4,7-tetrahydro-1H-inden-2-ylamine. [M+CH3CN] 177.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745462B2
Source datasetuspto-grants-2010_06
ORD IDord-620c63832b7e4dc5bc80e632159706c9
Source noteuspto-grants-2010_06