Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethyl chloroformate | HCID 10928 | — |
| Reactant | Benzylhydrazine dihydrochloride | HCID 146540 | — |
| Reactant | Linoleic Acid | HCID 5280450 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86737276 | HCID 86737276 | — |
Reaction Steps
To a solution of 7.0 g linoleic acid in 250 ml methylenechloride cooled to -20° is added first 2.5 g triethylamine and then dropwise 2.7 g ethyl chloroformate. The reaction mixture is allowed gradually to come to room temperature and stirred for 2 hours. There is then added 5.0 g triethylamine followed by 4.9 g benzylhydrazine dihydrochloride and the reaction mixture then stirred for 16 hours. Thereafter the reaction mixture is extracted five times with portions of 2 N hydrochloric acid, then once with 2 N aqueous sodium hydroxide solution and washed extensively with saturated aqueous sodium chloride. The organic phase is then dried with anh. sodium sulphate, filtered and the filtrate evaporated i.v. to dryness. The residue is then chromatographed over silica gel, with chloroform as the eluent. The desired fractions* are collected, and evaporated i.v. to dryness to yield the title product as a viscous oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04229463 |
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| Source dataset | uspto-grants-1980_10 |
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| ORD ID | ord-9467057db89e4417bc6f7f25b96c9b9e |
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| Source note | uspto-grants-1980_10 |
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