HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → HCID 20512361, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 2,2'-Dinitro[1,1'-biphenyl]-4,4'-dicarboxylic acid | HCID 179525 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Catalyst | Platinum oxide (PtO) | HCID 82844 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 20512361 | HCID 20512361 | 63.4% |
Reaction Steps
16.8 g (0.05 mol) of 2,2'-dinitro-biphenyl-4,4'-dicarboxylic acid are dissolved in 150 ml of water and 13.5 g (0.1 mol) of 30% sodium hydroxide solution. 100 mg of palladium-on-active charcoal (10%) and 50 mg of platinum oxide are added and the mixture is hydrogenated under normal pressure. 4.7 l of hydrogen are absorbed. The catalyst is filtered off with suction and the filtrate is rendered slightly acid. The precipitate is filtered off with suction and recrystallised from dimethylsulfoxide. 8.5 g (63.4%) of benzo-[c]-cinnoline-3,8-dicarboxylic acid are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04266011 |
| Source dataset | uspto-grants-1981_05 |
| ORD ID | ord-868c084065b0418083e4244499f7d977 |
| Source note | uspto-grants-1981_05 |