HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 2-Hexadecanoyloxyhexadecanoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Palmitoyl chloride | HCID 8206 | — |
| Reactant | 2-Hydroxyhexadecanoic acid | HCID 92836 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | 2-Hexadecanoyloxyhexadecanoic acid | HCID 13371862 | 90% |
Reaction Steps
α-Hydroxypalmitic acid (3.2 g) was dissolved in pyridine (15 ml), and palmitoyl chloride (3.3 g) was added thereto at 0° C. The resulting mixture was allowed to stand overnight at room temperature. The reaction mixture was poured into water and the aqueous solution was stirred at room temperature for 1 hour, followed by acidification with 1N hydrochloric acid, and extraction with ethyl acetate. The extract was washed with water, dried over magnesium sulfate and concentrated to give a residue which was recrystallized from petroleum ether to afford crystals of 2-hexadecanoyloxyhexadecanoic acid (5.4 g). M.p. 55°-56° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04643990 |
| Source dataset | uspto-grants-1987_02 |
| ORD ID | ord-0b0c7c1525044b2f92dfe7f214498d11 |
| Source note | uspto-grants-1987_02 |