HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Carbonate → alpha-Ethyl-alpha-(4-chlorophenyl)-4-[3-(di-n-propylamino)-propoxy]-benzylalcohol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Dipropylaminopropyl chloride | HCID 12333917 | — |
| Reactant | alpha-Ethyl-alpha-(4-chlorophenyl)-4-hydroxy-benzylalcohol | HCID 14727318 | — |
| Catalyst | Tetrabutylammonium hydrogen sulfate | HCID 94433 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | alpha-Ethyl-alpha-(4-chlorophenyl)-4-[3-(di-n-propylamino)-propoxy]-benzylalcohol | HCID 20216260 | — |
Reaction Steps
13.1 g. of α-ethyl-α-(4-chlorophenyl)-4-hydroxy-benzylalcohol, 14 g. of anhydrous potassium carbonate, 9.8 g. of dipropylaminopropyl chloride and 0.85 g. of tetrabutyl ammonium hydrogensulfate in 135 ml. of ethyl acetate are slightly boiled for 20 hours, under stirring. After cooling the mixture, the solvent is evaporated in vacuo. To the residue water and benzene are added. The phases are separated, the benzene solution is washed with water, dried over anhydrous potassium carbonate, filtered and evaporated. The residue is purified by vacuum fractionation. 13.8 g. of the desired end product are obtained, boiling at 198° to 200° C./1.33 Pa.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04645779 |
| Source dataset | uspto-grants-1987_02 |
| ORD ID | ord-207e32b5a3714d40af02fe0ad4959c98 |
| Source note | uspto-grants-1987_02 |