HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2370235Generated: November 1, 2026
Ethyl cyanoformate → HCID 58075576, compound
https://huagongshe.com/reaction/2370235
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethyl cyanoformate | HCID 69336 | — |
| Reactant | Lithium diisopropylamide | HCID 2724682 | — |
| Reactant | HCID 66709089 | HCID 66709089 | — |
| Product | HCID 58075576 | HCID 58075576 | 83.3% |
Reaction Steps
2-(6-(trifluoromethyl)pyridin-3-yl)cyclopentanone (700 mg, 3.05 mmol) was added to a solution of LDA (2.291 mL, 4.58 mmol) at −78° C. After stirring for 30 min at −78° C., ethyl carbonocyanidate (0.329 mL, 3.36 mmol) was added to the reaction mixture. The resulting solution was warmed to room temperature with stirring over 3 h. The reaction mixture was quenched with 1 mL of water, washed with brine, dried over MgSO4, and purified by Biotage (Hexanes/EtOAc 2:1) to afford ethyl 2-oxo-3-(6-(trifluoromethyl)pyridin-3-yl)cyclopentanecarboxylate (764 mg, 2.54 mmol, 83% yield). LC-MS (M+H)+=302.2.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08710061B2 |
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| Source dataset | uspto-grants-2014_04 |
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| ORD ID | ord-cdb61061cdb7443e97661018e5960ec2 |
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| Source note | uspto-grants-2014_04 |
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