HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475273Generated: October 30, 2026
Potassium tert-butoxide → HCID 74890582, compound
https://huagongshe.com/reaction/475273
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Reactant | 4-Amino-2-chloro-5-ethynylbenzonitrile | HCID 86694748 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 74890582 | HCID 74890582 | 86% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08637537B2 |
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| Source dataset | uspto-grants-2014_01 |
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| ORD ID | ord-3667633bd8364d6cb417c7ede19dd692 |
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| Source note | uspto-grants-2014_01 |
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