Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Oleic Acid | HCID 445639 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | N-Boc-diethanolamine | HCID 4360601 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86682232 | HCID 86682232 | 58.8% |
Reaction Steps
tert-Butyl bis(2-hydroxyethyl)carbamate (Aldrich; 600 mg, 2.92 mmol) was dissolved in dichloromethane (30 mL), and stirred overnight at room temperature after adding oleic acid (Tokyo Chemical Industry Co., Ltd.; 1.82 g, 6.43 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.29 g, 6.72 mmol), and 4-dimethylaminopyridine (89 mg, 0.731 mmol). The aqueous layer was extracted with ethyl acetate after adding a saturated sodium bicarbonate aqueous solution to the reaction mixture. The organic layer was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure after filtration. The resulting residue was purified by silica gel column chromatography (hexane/chloroform=50/50 to 0/100) to give tert-butyl N,N-bis(2-((Z)-octadec-9-enoyloxy)ethyl)carbamate (1.26 g, 58.7%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09408914B2 |
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| Source dataset | uspto-grants-2016_08 |
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| ORD ID | ord-b3717de83ba8407183f7c9c86dc9a936 |
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| Source note | uspto-grants-2016_08 |
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