HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 23134897, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 2,4-Dihydroxybenzaldehyde | HCID 7213 | — |
| Reactant | Dodecanal | HCID 8194 | — |
| Reactant | Calcium Chloride | HCID 5284359 | — |
| Reactant | Potassium hydroxide methanol | HCID 23689386 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2,4-Dihydroxybenzaldehyde | HCID 7213 | 40% |
| Product | HCID 23134897 | HCID 23134897 | 51% |
Reaction Steps
2,4-Dihydroxybenzaldehyde (1.39 g, 10.0 mmol), dodecanal (2.21 g, 12.0 mmol) and calcium chloride dehydrate (1.03 g, 7.0 mmol) were dissolved in methanol (21 ml), added with a potassium hydroxide methanol solution (1.0 M, 14 ml) at 0(C and stirred for 24 hours. The reaction mixture was made acidic with 1 M hydrochloric acid and extracted with ethyl acetate, and after post-treatment, the crude product (2.84 g) was purified by silica gel column chromatograophy (hexane:ethyl acetate=5:1) to obtain 2,4-dihydroxy-3-(1-hydroxy-dodecyl)benzaldehyde (colorless solid 1.65 g, yield 51%) and 2,4-dihydroxybenzaldehyde (552 mg, recovery 40%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07622598B2 |
| Source dataset | uspto-grants-2009_11 |
| ORD ID | ord-974cf10b49e549a69b57ff183f8a9fd8 |
| Source note | uspto-grants-2009_11 |