Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 3-Cyano-4-fluorobenzylcyanide | HCID 2773936 | — |
| Reactant | 3,6-Dichloro-4-isopropylpyridazine | HCID 14024162 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86632299 | HCID 86632299 | — |
Reaction Steps
To an ice-cold solution of 5-(cyanomethyl)-2-fluorobenzonitrile (1 eq) and 3,6-dichloro-4-isopropylpyridazine (1.3 eq) (Reference: Org. Prep.+Proc. Int. 1988, 20, 117 and U.S. Pat. No. 4,628,088, 1986) in THF (38 mL, 0.1 M) was added portionwise NaH (1 eq). The reaction was stirred at 0° C. for 15 min and then warmed to RT and stirred for 2 hrs. The reaction was quenched with a sat. aq. NaHCO3 and extracted with EtOAc. The combined organic fractions were washed with brine, dried (Na2SO4) and concentrated under reduced pressure. The crude was purified by silica gel chromatography, eluting with petroleum ether:EtOAc (8:2) to afford the title compound. 1H NMR (400 MHz, CDCl3) δ: 7.80-7.79 (2H, m), 7.49 (1H, s), 7.31-7.29 (1H, m), 5.63 (1H, s), 3.34-3.28 (1H, m), 1.36-1.29 (6H, m). MS (ES) C16H12ClFN4 required: 314/316. found: 315/317 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08188084B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-4676f021764847a682c5cf1f61d86b89 |
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| Source note | uspto-grants-2012_05 |
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