HuagongsheHuagongshe Chemistry Print Report · For research reference only
(+-)-2-Butanol → 2,4-Di-tert-butyl-6-(1-oxo-2H-1lambda~5~,2,3-benzotriazol-2-yl)phenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | (+-)-2-Butanol | HCID 6568 | — |
| Reactant | 2,4-Bis(1,1-dimethylethyl)-6-[2-(2-nitrophenyl)diazenyl]phenol | HCID 104110 | — |
| Reactant | 2-Nitro-2'-hydroxy-5'-t-butylazobenzene | HCID 135514582 | — |
| Solvent | 1-Octanol | HCID 957 | — |
| Product | 2,4-Di-tert-butyl-6-(1-oxo-2H-1lambda~5~,2,3-benzotriazol-2-yl)phenol | HCID 341386 | 83% |
Reaction Steps
The same procedure as in Example 7 was repeated, except that secondary butanol 80 g was replaced by n-octanol 50 g, and that 2-nitro-2'-hydroxy-5'-t-butylazobenzene 19.9 g was replaced by 2-nitro-2'-hydroxy-3',5'-di-t-butylazobenzene 23.7 g, thus producing 18.7 g of 2-(2-hydroxy-3,5-di-t-butylphenyl)benzotriazole-N-oxide having a melting point of 168° to 171° C. at the yield of 83.0%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04943637 |
| Source dataset | uspto-grants-1990_07 |
| ORD ID | ord-c7f3c064070f403d971d820c933b16c7 |
| Source note | uspto-grants-1990_07 |