Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-(Hydroxymethyl)benzeneboronic acid | HCID 2734706 | — |
| Reactant | 4-Bromopyridazine | HCID 17888927 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | 1,2-Dimethoxyethane | HCID 8071 | — |
| Product | 4-(Pyridazin-4-yl)benzyl alcohol | HCID 66717417 | 64% |
Reaction Steps
To a solution of 4-bromopyridazine (131 mg, 0.824 mmol) in 1,2-dimethoxyethane (16.4 ml) were added 4-hydroxymethylphenylboronic acid (189 mg, 1.24 mmol), potassium carbonate (517 mg, 3.74 mmol) and water (8.2 ml), which was deaerated under reduced pressure, followed by argon substitution. Tetrakis(triphenylphosphine)-palladium (73.5 mg, 0.0636 mmol) was then added, followed by heating to reflux for 5 hours under argon atmosphere. After completion of the reaction, the reaction solution was concentrated under reduced pressure. The resulting residue was subjected to reversed phase column chromatography (column; Megabond Elut™ C18 (manufactured by Varian, Inc.), eluent; acetonitrile:water=0:1→1:4 (VAT), then methanol), and fractions containing the desired compound were concentrated under reduced pressure to afford the title compound (97.7 mg) as a slightly brown solid. (Yield: 64%)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08648097B2 |
|---|
| Source dataset | uspto-grants-2014_02 |
|---|
| ORD ID | ord-06c41305dd46490d9cb5b864c7ddadae |
|---|
| Source note | uspto-grants-2014_02 |
|---|