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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1432328Generated: November 2, 2026

Ethanol → 1H-Pyrrolo[2,3-b]pyridine-3-carbonitrile, 5-(2-thienyl)-

https://huagongshe.com/reaction/1432328

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
Reactant1H-Pyrrolo[2,3-b]pyridine-3-carbonitrile, 1-(phenylsulfonyl)-5-(2-thienyl)-HCID 68956781—
SolventDichloromethane methanolHCID 21226129—
Product1H-Pyrrolo[2,3-b]pyridine-3-carbonitrile, 5-(2-thienyl)-HCID 5793327868%

Reaction Conditions

Temperature105 °C

Reaction Steps

A mixture of 11 (18.3 mg, 50.1 μmol), EtOH (2.0 mL) and 10% aqueous NaOH (1.0 mL) was refluxed (oil bath temp. 105° C.) for 40 min. The mixture was poured onto water (3 mL), extracted with ethyl acetate (3×10 mL). The combined organic extracts were dried (MgSO4) and concentrated. The product was isolated by PTLC using dichloromethane:methanol (19:1) as eluent to give 12 as a white solid (7.6 mg, 68%); 1H NMR (400 MHz, CDCl3) δ 10.30-10.10 (bs, NH), 10.74 (d, J=1.9 Hz, 1H), 8.31 (d, J=1.9 Hz, 1H), 7.90 (s, 1H), 7.39 (m, 2H), 7.16 (dd, J=5.0, 3.6 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07612086B2
Source datasetuspto-grants-2009_11
ORD IDord-87a246b9af0f445694427eae00478655
Source noteuspto-grants-2009_11