Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | 1,4-Naphthoquinone | HCID 8530 | — |
| Reactant | 1,3-Butadienyl acetate | HCID 15195 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | Anthraquinone | HCID 6780 | 90% |
Reaction Steps
15.8 parts by weight of naphthoquinone and 13.0 parts by weight of 1-acetoxybutadiene in 40 parts by volume of dimethylformamide and 10 parts by volume of acetic acid are stirred for 6 hours under nitrogen at 45° - 50° C. Air is then passed in and the batch is stirred for 2 hours at 125° C. After cooling, the anthraquinone which has precipitated is filtered off and washed with dimethylformamide. 18.0 g (90% 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-67bad0e098a54b7688f8a8265d727a07 |
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| Source note | uspto-grants-1976_12 |
|---|
