HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 859672Generated: October 27, 2026
Potassium Cyanide → (4-Bromo-2-ethyl-phenyl)-acetonitrile
https://huagongshe.com/reaction/859672
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Cyanide | HCID 9032 | — |
| Reactant | 4-Bromo-1-(bromomethyl)-2-ethylbenzene | HCID 58764075 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Solvent | N,N-Dimethylformamide--water (1/1) | HCID 21962138 | — |
| Product | (4-Bromo-2-ethyl-phenyl)-acetonitrile | HCID 67084404 | 81.9% |
Reaction Steps
To a solution of 4-bromo-1-bromomethyl-2-ethyl-benzene (2.0 g, 7.25 mmol) in DMF/H2O (30 mL/6 mL) was added potassium cyanide (471 mg, 7.25 mmol). The reaction mixture was heated to 45° C. for 3 hours before it was cooled to room temperature. The mixture was diluted with Et2O and washed with H2O, brine and dried over MgSO4. The solvent was removed in vacuo to obtain the desired product (1.33 g, 80% yield). 1H NMR (300 MHz, CDCl3): δ 1.26 (t, J=7.5 Hz, 3 H), 2.60–2.67 (m, 2 H), 3.66 (s, 2H), 7.23–7.26 (m, 1H), 7.35–7.36 (m, 1 H), 7.38–7.40 (m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07151105B2 |
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| Source dataset | uspto-grants-2006_12 |
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| ORD ID | ord-cc20a81dc0b447e19c3906ca43be9db0 |
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| Source note | uspto-grants-2006_12 |
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