Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | HCID 59199322 | HCID 59199322 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Product | HCID 67547360 | HCID 67547360 | — |
Reaction Steps
To a solution of 7-iodo-isothiochroman-4-one (290 mg, 1.0 mmol) in DMF (5 mL) is added Zn(CN)2 (117 mg, 1.0 mmol) and Pd(PPh3)4 (124 mg, 0.1 mmol). The reaction is then heated to 95° C. for 3 hours, at which time it is cooled to room temperature and concentrated to dryness. The resulting residue is purified by silica gel flash chromatography (ethyl acetate-dichloromethane, 1:10 to 3:10) to furnish 4-oxo-isothiochroman-7-carbonitrile; MS: (ESI) m/z 188.2 (M−H)−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08436035B2 |
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| Source dataset | uspto-grants-2013_05 |
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| ORD ID | ord-7b05f57a45c748109010f44c1c4541eb |
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| Source note | uspto-grants-2013_05 |
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