Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Phosphorus trichloride | HCID 24387 | — |
| Reactant | Ethyl 2-chloro-2-cyano-5-oxopentanoate | HCID 10998104 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | Ethyl chloronicotinate | HCID 2796614 | 87% |
Reaction Steps
To a solution of DMF (3.22 g, 44 mmol) in 30 mL of toluene were added 6.05 g of PCl3 (44 mmol). Anhydrous HCl was introduced until saturated. Ethyl 2-chloro-2-cyano-5-oxopentanoate (4.5 g, 20 mmol) in 10 mL of toluene was added in 30 minutes. The resulting mixture was stirred for 1 h at 80° C., cooled to room temperature, quenched with water, and extracted with toluene. GLC analysis indicated that the title compound was formed in 87% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05493028 |
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| Source dataset | uspto-grants-1996_02 |
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| ORD ID | ord-b63b6a57313d4694b13aaf3007d2c163 |
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| Source note | uspto-grants-1996_02 |
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