HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → 2-(2'-Hydroxy-3'5-di-tert-butylphenyl) benzotriazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 2,4-Bis(1,1-dimethylethyl)-6-[2-(2-nitrophenyl)diazenyl]phenol | HCID 104110 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Catalyst | Nickel | HCID 935 | — |
| Solvent | Tributyl Phosphate | HCID 31357 | — |
| Product | 2-(2'-Hydroxy-3'5-di-tert-butylphenyl) benzotriazole | HCID 77455 | 85.8% |
Reaction Steps
Using the general procedure 6, 35.5 grams of 2-nitro-2'-hydroxy-3',5'-di-tert-butylazobenzene was suspended in 100 grams of tributyl phosphate, 50 grams of methanol and 4 grams of sodium hydroxide. To the suspension was then added 8 grams of Raney nickel catalyst and hydrogenation was carried out under 1 atmosphere of hydrogen at 45° C. for 7 hours. The catalyst was separated by filtration at 80° C. The above named product was obtained in the usual manner in a yield of 85.8%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04219480 |
| Source dataset | uspto-grants-1980_08 |
| ORD ID | ord-7689c388765c4881b0b07f82f8a08e49 |
| Source note | uspto-grants-1980_08 |