HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Bromide → Hydrazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Bromide | HCID 6332 | — |
| Reactant | 4,4-Diphenylimidazolidine-2-thione | HCID 4005988 | — |
| Reactant | HCID 70636826 | HCID 70636826 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Hydrazine | HCID 9321 | — |
| Product | HCID 70637439 | HCID 70637439 | — |
Reaction Steps
The starting material, 5,5-diphenyl-2-imidazolin-2-ylhydrazine hydrobromide, is prepared as follows: 4,4-diphenylimidazolin-2-thione, prepared by the method of Marshall, J. Am. Chem. Soc. 78 3696 (1956), is treated with ethyl bromide in refluxing ethanol to yield 5,5-diphenyl-2-ethylthio-2-imidazoline hydrobromide, which upon treatment with hydrazine in refluxing ethanol gives the desired intermediate, melting point 227°-⟦8°⟧228° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | USRE029358 |
| Source dataset | uspto-grants-1977_08 |
| ORD ID | ord-72692aee390747819bfe3052b9e50d6e |
| Source note | uspto-grants-1977_08 |