HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475159Generated: October 29, 2026
N-methyl-2-pyrrolidone → HCID 71272741, compound
https://huagongshe.com/reaction/475159
Participants
| Role | Name | HCID | Charge |
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| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | HCID 71272199 | HCID 71272199 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Product | HCID 71272741 | HCID 71272741 | 79% |
Reaction Steps
A sealed-cap vial was charged with 4-bromo-1-(tetrahydro-2H-pyran-2-yl)-6-(trifluoromethyl)-1H-indazole (1.03 g, 2.95 mmol), Zn(CN)2 (0.38 g, 3.24 mmol), Pd(PPh3)4 (0.24 g, 0.21 mmol), and NMP (8 mL). The mixture was degassed for 5 min under nitrogen and the mixture then stirred under nitrogen at 85° C. for 16 h. The mixture was filtered and the filtrate concentrated in vacuo. The crude mixture was purified by SiO2 chromatography to afford 1-(tetrahydro-2H-pyran-2-yl)-6-(trifluoromethyl)-1H-indazole-4-carbonitrile as a solid (0.69 g, 79%). MS (ESI) m/z: 296.3 [M+1]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08637537B2 |
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| Source dataset | uspto-grants-2014_01 |
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| ORD ID | ord-8f78909afdb344c085e52f0f21cf4d21 |
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| Source note | uspto-grants-2014_01 |
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