HuagongsheHuagongshe Chemistry Print Report · For research reference only
tert-Butyl piperazine-1-carboxylate → Tert-butyl 4-((4'-chlorobiphenyl-2-yl)methyl)piperazine-1-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | 4'-Chlorobiphenyl-2-carbaldehyde | HCID 1393689 | — |
| Reactant | Sodium triacetoxyborohydride | HCID 5049666 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | Tert-butyl 4-((4'-chlorobiphenyl-2-yl)methyl)piperazine-1-carboxylate | HCID 22662065 | — |
Reaction Steps
4′-Chlorobiphenyl-2-carbaldehyde (EXAMPLE 27C) (4.1 g), tert-butyl piperazine-1-carboxylate (4.23 g), and sodium triacetoxyborohydride (5.61 g) in CH2Cl2 (60 mL) were combined stirred for 24 hours. The reaction was quenched with methanol and poured into ether. The solution was washed with water and brine, concentrated, and chromatographed on silica gel with 2-25% ethyl acetate/hexanes.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09073855B2 |
| Source dataset | uspto-grants-2015_07 |
| ORD ID | ord-3dee377f5afd469cabd19a5960c1c0ef |
| Source note | uspto-grants-2015_07 |