HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 4-Morpholinopiperidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-(1-Benzylpiperidin-4-yl)morpholine | HCID 783831 | — |
| Catalyst | Palladium hydroxide | HCID 9942167 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 4-Morpholinopiperidine | HCID 795724 | 91.2% |
Reaction Steps
4-(1-benzyl-piperidin-4-yl)-morpholine (1.56 g, 6.0 mmol) was hydrogenated using Pd(OH)2 (20% on carbon, 390 mg, 25 wt%), 1.7 M HCl (10.6 mL) in methanol (50 mL) at 50° C. for 10 hours. The resulted amine dihydrochloride off-white solid was subjected to free-basing using excess basic resin to give 932 mg (91%) of 4-piperidin-4-yl-morpholine as waxy crystalline solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06599902B2 |
| Source dataset | uspto-grants-2003_07 |
| ORD ID | ord-5d05e0ea1bb044ed85073dc10722a7b0 |
| Source note | uspto-grants-2003_07 |