Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Tri-o-tolylphosphine | HCID 80271 | — |
| Reactant | 1-Bromo-2-methyl-4-(trifluoromethyl)benzene | HCID 22754141 | — |
| Reactant | HCID 86677037 | HCID 86677037 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 86677038 | HCID 86677038 | 55% |
Reaction Steps
1-Bromo-2-methyl-4-(trifluoromethyl)benzene (1.144 g, 4.79 mmol), 3,4-bis(benzyloxy)-6-ethenylpyridazine (Intermediate 78; 1.27 g, 3.99 mmol), palladium(II) acetate (0.045 g, 0.199 mmol), triethylamine (10.56 ml, 76 mmol), tri-o-tolylphosphine (0.243 g, 0.798 mmol) and acetonitrile (8 ml) were combined. The reaction mixture was subjected to microwave irradiation at 120° C. for 30 minutes before being quenched with water and extracted into ethyl acetate. The combined organics were washed with brine, dried (MgSO4) and concentrated in vacuo to afford an orange gum. This was purified by column chromatography (silica, eluting with 0-30% ethyl acetate in petrol) to afford 3,4-bis(benzyloxy)-6-[(E)-2-[2-methyl-4-(trifluoromethyl)phenyl]ethenyl]pyridazine as a white solid (1.04 g, 55%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09290456B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-0c9fbe566f7a46b5bcb8423ab911ce5e |
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| Source note | uspto-grants-2016_03 |
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