HCID 4158166, Verbindung → 2-(Chloroethynyl)-5-nitrofuran
Reaktionsgleichung
[Cl:1][C:2](Cl)=[CH:3][C:4]1[O:5][C:6]([N+:9]([O-:11])=[O:10])=[CH:7][CH:8]=1.CC(C)([O-])C.[K+]>C(O)(C)(C)C>[Cl:1][C:2]#[C:3][C:4]1[O:5][C:6]([N+:9]([O-:11])=[O:10])=[CH:7][CH:8]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a stirred solution of 20.8 g of 1 in 100 ml of dry tert-butanol was added dropwise at 5°-10° over a 30-minute period a solution of 11.2 g of potassium tert-butoxide in 100 ml of tert-butanol. The mixture then was stirred at 5°-10° for 1 hour longer. Concentration of the mixture under reduced pressure gave a dark residue which was extracted with ether and water. The ether phase was separated, dried over magnesium sulfate and Claisen distilled to give 4 as a liquid, b.p.: 73°-76° at 0.2 torr which solidified on standing, the solid having a melting point of 38°-41°.