HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → 4-(3,4-Dichlorophenoxy)-[1,4']bipiperidinyl-1'-carboxylic acid tert-butyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | tert-Butyl 4-oxopiperidine-1-carboxylate | HCID 735900 | — |
| Reactant | 4-(3,4-Dichlorophenoxy)piperidine | HCID 3732042 | — |
| Reactant | Sodium triacetoxyborohydride | HCID 5049666 | — |
| Solvent | 1,2-Dichloroethane | HCID 11 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | 4-(3,4-Dichlorophenoxy)-[1,4']bipiperidinyl-1'-carboxylic acid tert-butyl ester | HCID 11212544 | — |
Reaction Steps
4-(3,4-Dichlorophenoxy)piperidine (1.5 g) was dissolved in 1,2-dichloroethane (21 ml). 1-Boc-4-piperidone was added (1.21 g) followed by NaBH(OAc)3 (1.81 g) and acetic acid (0.37 g). After 18 hours at room temperature aqueous NaOH (1M) solution and diethyl ether were added. The product was extracted with diethyl ether, the combined organic extracts dried with MgSO4 and concentrated. Purification by silica chromatography (dichloromethane:methanol 92:8) gave the sub-title product (1.97 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07179922B2 |
| Source dataset | uspto-grants-2007_02 |
| ORD ID | ord-b56cf4608c2f41898801741083f5e15f |
| Source note | uspto-grants-2007_02 |