HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → 4-[6-(4-Methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-benzoxazol-2-yl]-benzonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | p-Toluenesulfonic acid monohydrate | HCID 521998 | — |
| Reactant | 4-cyano-N-[2-hydroxy-4-(4-methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-phenyl]-benzamide | HCID 67462621 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-[6-(4-Methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-benzoxazol-2-yl]-benzonitrile | HCID 67461007 | — |
Reaction Steps
250 mg (718 μmol) 4-cyano-N-[2-hydroxy-4-(4-methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-phenyl]-benzamide and 126 mg (718 μmol) para-toluenesulphonic acid monohydrate are refluxed with 10 ml glacial acetic acid for 3 h. Then the solv. is eliminated by rotary evaporation i.V., water is added to the residue and the product is filtered off.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08772323B2 |
| Source dataset | uspto-grants-2014_07 |
| ORD ID | ord-8714c1ebf5a045c39f35b878614e2de7 |
| Source note | uspto-grants-2014_07 |