HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 342221Erstellt: 24. Oktober 2026
Potassium Carbonate → 7-(4-bromo-but-2-enyloxy)-4-(4-bromo-phenyl)-1H-benzo[d][1,2]oxazine
https://huagongshe.com/de/reaction/342221
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | Potassium Carbonate | HCID 11430 | — |
| Edukt | trans-1,4-Dibromo-2-butene | HCID 641245 | — |
| Edukt | 4-(4-bromo-phenyl)-1H-benzo[d][1,2]oxazin-7-ol | HCID 135501633 | — |
| Lösungsmittel | Acetone | HCID 180 | — |
| Produkt | 7-(4-bromo-but-2-enyloxy)-4-(4-bromo-phenyl)-1H-benzo[d][1,2]oxazine | HCID 67684159 | 78,3% |
Reaktionsschritte
A mixture of 1.28 g of 4-(4-bromo-phenyl)-1H-benzo[d][1,2]oxazin-7-ol, 2.71 g of (E)-1,4-dibromo-2-butene and 1.74 g of potassium carbonate in 80 ml of acetone is stirred at 65° C. After cooling the reaction mixture is filtered and the filtrate is concentrated and purified by chromatography (silica gel, toluene/acetone 98:2). There are obtained 1.44 g of 7-(4-bromo-but-2-enyloxy)-4-(4-bromo-phenyl)-1H-benzo[d][1,2]oxazine, MS: m/e 437 (64%, M+, 2 Br).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patentnummer | US05856503 |
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| Quelldatensatz | uspto-grants-1999_01 |
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| ORD ID | ord-a8dd78e614b643caa44ffaa4cc4cd5ae |
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| Quellennotiz | uspto-grants-1999_01 |
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