Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethylamine | HCID 8021 | — |
| Reactant | 1-Chloro-2-ethynylbenzene | HCID 585995 | — |
| Reactant | 4-Chloro-2-iodoaniline | HCID 2757615 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 86682928 | HCID 86682928 | 62% |
Reaction Steps
To a stirred solution of 4-chloro-2-iodo-phenylamine (500 mg, 1.97 mmol) in dimethylformamide (4 ml) was added PdCl2(PPh3)2 (7 mg, 0.02 mmol) followed by copper(I)iodide (3.7 mg, 0.02 mmol), 1-chloro-2-ethynyl-benzene (0.28 ml, 2.36 mmol) and diethylamine (1.65 ml, 15.78 mmol) under nitrogen at RT. The resulting reaction mixture was purged with nitrogen and then heated to 50° C. for 5 h. After cooling to room temperature, the mixture was diluted with water and extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate and concentrated in vacuo to give a crude residue which was purified by flash column chromatography (elution with 4% EtOAc in hexane) to yield 4-chloro-2-(2-chloro-phenylethynyl)-phenylamine (320 mg, 62% yield) as an off white solid. LC-MS: 262 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09199938B2 |
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| Source dataset | uspto-grants-2015_12 |
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| ORD ID | ord-42a1ae943f494438b093acb08ce9ebcf |
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| Source note | uspto-grants-2015_12 |
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