Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrogen Sulfide | HCID 402 | — |
| Reactant | 1H-Benzotriazole | HCID 7220 | — |
| Reactant | Benzoin | HCID 8400 | — |
| Reactant | Nickel Dichloride | HCID 24385 | — |
| Reactant | 1,2-Diphenyl-2-sulfanylethane-1-thione | HCID 13390908 | — |
| Reactant | CID 85882288 | HCID 85882288 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | 28984-20-5 | HCID 11272716 | — |
Reaction Steps
The oxidation inhibitor, bis(dithiobenzil) nickel is prepared by adding a mixture of 100 grams of benzoin, 150 grams of phosphorus sulfide and 700 ml of dioxane to a 5 liter, single necked flask equipped with heating mantle and water cooled condenser. The above-described mixture is, then, refluxed for 2 hours, during which the thiophosphoric ester of dithiobenzoin is formed and hydrogen sulfide is evolved. The reaction mixture is cooled and a solution of 50 grams of nickel chloride (hydrated) in 200 ml of water is added to the flask and heated (212° F.) for 2 hours on a steam btah. Black crystals of bis(dithiobenzil) nickel are formed and collected by filtering the cooled solution. Purification is effected by extraction with boiling toluene.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US04490265 |
|---|
| Source dataset | uspto-grants-1984_12 |
|---|
| ORD ID | ord-5f370e4411bf4a4c8a5872d49fc21b43 |
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| Source note | uspto-grants-1984_12 |
|---|
