Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 1-Bromohexadecane | HCID 8213 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | HCID 14206225 | HCID 14206225 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 14369504 | HCID 14369504 | 71.7% |
Reaction Steps
A solution of 4.09 g of 4,5-dihydrofurfuryl alcohol (prepared as described in Preparation 12) in 10 ml of dimethylformamide was added dropwise to 2.62 g of a 55% w/w suspension of sodium hydride in mineral oil, itself suspended in 40 ml of dimethylformamide, whilst maintaining the temperature of the mixture at from 5° to 12° C. by ice-cooling. The mixture was then stirred at room temperature for 30 minutes, 18.32 g of hexadecyl bromide were added to the solution, and the whole was stirred at room temperature for 15 hours. The reaction mixture was then poured into 200 ml of water, and extracted twice with diethyl ether. The extract was washed with water, dried and condensed by evaporation under reduced pressure. The oily residue, 17 g, was subjected to column chromatography through 400 g of Grade II-III alumina (a product of Woelm Pharma, West Germany). The fraction eluted with a 1:20 by volume mixture of diethyl ether and hexane gave 9.512 g of the title compound as a solid, melting at 30.5°-31.5° C. (cold hexane).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04794183 |
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| Source dataset | uspto-grants-1988_12 |
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| ORD ID | ord-48607985ef5b4940bf84316718f0676d |
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| Source note | uspto-grants-1988_12 |
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