HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → Octrizole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 2-((2-Nitrophenyl)azo)-4-(1,1,3,3-tetramethylbutyl)phenol | HCID 103927 | — |
| Reactant | 2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene | HCID 104111 | — |
| Reactant | Diazene, (nitrophenyl)phenyl-, (E)- | HCID 142206 | — |
| Product | Octrizole | HCID 62485 | 62.6% |
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-5'-tert-octyl-2-nitroazobenzene and the moles of sodium hydroxide per mole of o-nitroazobenzene intermediate was increased from 0.42/1 to 1.2/1, the product 2-(2-hydroxy-5-tert-octylphenyl)-2H-benzotriazole was obtained in an isolated yield of 62.6% of theory with a melting point of 104°-107° C. The mother liquor contained a compound believed to be an isomer of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04041044 |
| Source dataset | uspto-grants-1977_08 |
| ORD ID | ord-3ae049e8c8894710b33557fb527ff2e0 |
| Source note | uspto-grants-1977_08 |