HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Triphenylphosphine → Tert-butyl 4-(4-(ethoxycarbonyl)-1H-pyrazol-1-YL)piperidine-1-carboxylate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Triphenylphosphine | HCID 11776 | — |
| Edukt | ethyl 1H-pyrazole-4-carboxylate | HCID 142179 | — |
| Edukt | ethyl N-ethoxycarbonyliminocarbamate | HCID 220568 | — |
| Edukt | Tert-butyl 4-hydroxypiperidine-1-carboxylate | HCID 643502 | — |
| Produkt | Tert-butyl 4-(4-(ethoxycarbonyl)-1H-pyrazol-1-YL)piperidine-1-carboxylate | HCID 45926154 | 65,3% |
Reaktionsschritte
By a procedure analogous to that of Example 32 Step A, t-butyl 4-hydroxypiperidine-1-carboxylate (0.79 g, 3.6 mmol) was reacted with triphenylphosphine (1.26 g, 4.8 mmol), diethyl azodicarboxylate (0.76 mL, 4.8 mmol) and ethyl 1H-pyrazole-4-carboxylate (0.50 g, 3.6 mmol) to afford the title compound (0.76 g) as a white solid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08586611B2 |
| Quelldatensatz | uspto-grants-2013_11 |
| ORD ID | ord-97fc9f8c9c0d40518a25022efb2f07db |
| Quellennotiz | uspto-grants-2013_11 |