Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Oxygen | HCID 977 | — |
| Reactant | 1,4-Naphthoquinone | HCID 8530 | — |
| Reactant | 1,3-Butadienyl acetate | HCID 15195 | — |
| Reactant | Sodium Acetate | HCID 517045 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Anthraquinone | HCID 6780 | 91% |
Reaction Steps
15.8 parts by weight naphthoquinone and 13.5 parts by weight of 1-acetoxybutadiene in 50 parts by volume of dimethylformamide and 1 part by volume of acetic acid are stirred for 6 hours under nitrogen at 45° - 50° C. 0.4 part by weight of sodium acetate is then added, oxygen is passed in and the batch is stirred for 2 hours at 120° C. After cooling, the anthraquinone which has precipitated is filtered off and washed with dimethylformamide. 18.2 parts by weight (91% of theory) of anthraquinone of melting point 284° C are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US03998857 |
|---|
| Source dataset | uspto-grants-1976_12 |
|---|
| ORD ID | ord-5f5ba06d4f464091ad634a72a246a7f6 |
|---|
| Source note | uspto-grants-1976_12 |
|---|
