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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475273Generated: October 30, 2026

Potassium tert-butoxide → HCID 74890582, compound

https://huagongshe.com/reaction/475273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium tert-butoxideHCID 23665647—
Reactant4-Amino-2-chloro-5-ethynylbenzonitrileHCID 86694748—
SolventTetrahydrofuranHCID 8028—
ProductHCID 74890582HCID 7489058286%

Reaction Conditions

Temperature75 °C

Reaction Steps

To a solution of 240 (50 mg, 0.284 mmol) in THF (100 mL) was added t-BuOK (160 mg, 1.42 mmol). The mixture was heated at 75° C. for 3 h during which the color of the reaction mixture changed from yellow to brown. After the mixture was cooled, it was partitioned between EtOAc (200 mL) and H2O (50 mL). The organic layer was separated, washed with brine, dried and concentrated in vacuo to afford 43 mg (86%) of 6-chloro-1H-indole-5-carbonitrile (242) as white solid: 1H NMR (500 MHz, DMSO-d6) (511.80 (s, 1H), 8.21 (s, 1H), 7.70 (s, 1H), 7.60 (d, 1H), 6.61 (d, 1H); MS (ESI) m/z=177.0 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637537B2
Source datasetuspto-grants-2014_01
ORD IDord-3667633bd8364d6cb417c7ede19dd692
Source noteuspto-grants-2014_01