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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1434556Generated: November 2, 2026

Ammonium Chloride → 4-Nitro-2,3-dihydro-1H-inden-1-OL

https://huagongshe.com/reaction/1434556

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant4-Nitroindan-1-oneHCID 90563—
ReactantSodium borohydrideHCID 4311764—
SolventEthanolHCID 702—
Product4-Nitro-2,3-dihydro-1H-inden-1-OLHCID 13102456—

Reaction Steps

To a solution of 4-nitroindan-1-one (0.381 g, 2.15 mmol) in ethanol (5 ml) was added sodium borohydride (0.048 g, 1.29 mmol) at 0° C., and the mixture was stirred at room temperature for 3 hours. Aqueous solution of ammonium chloride was added to the mixture, and extracted with ethyl acetate. The organic layer was dried over MgSO4, filtered, and concentrated under reduced pressure to obtain 4-nitroindan-1-ol. 1H NMR (CDCl3) δ 1.90 (d, J=6.5 Hz, 1H), 2.00-2.07 (m, 1H), 2.56-2.63 (m, 1H), 3.25-3.33 (m, 1H), 3.54-3.60 (m, 1H), 5.30-5.35 (m, 1H), 7.44 (t, J=8.2 Hz, 1H), 7.72 (d, J=7.6 Hz, 1H), 8.12 (d, J=8.2 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07615557B2
Source datasetuspto-grants-2009_11
ORD IDord-6615d58dbf4a4058b4b1fd975ade5427
Source noteuspto-grants-2009_11