HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene → 2-(2-hydroxy-3-methyl-5-tert-butylphenyl)-2H-benzotriazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene | HCID 104111 | — |
| Reactant | Phenol, 4-(1,1-dimethylethyl)-2-methyl-6-[(2-nitrophenyl)azo]- | HCID 135623119 | — |
| Product | 2-(2-hydroxy-3-methyl-5-tert-butylphenyl)-2H-benzotriazole | HCID 13580802 | 81% |
Reaction Steps
When in Example 1, the 2'-hydroxy-3',5'-di-tert-amyl-2-nitroazobenzene was replaced by an equivalent amount of 2'-hydroxy-3'-methyl-5'-tert-butyl-2-nitroazobenzene, the product 2-(2-hydroxy-3-methyl-5-tert-butylphenyl)-2H-benzotriazole was obtained after a reaction time of 5 hours in an isolated yield of 81% of theory with a melting point of 145°-146° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04041044 |
| Source dataset | uspto-grants-1977_08 |
| ORD ID | ord-d14c5d8ffce44fb6a47724e0c502ffef |
| Source note | uspto-grants-1977_08 |