2-(1-Imidazolyl)-2-(4-chloro-methyl-1,3-dithiolan-2-ylidene)acetonitrile → 2-(1-Imidazolyl)-2-(4-methylidene-1,3-dithiolan-2-ylidene)acetonitrile
Reaktionsgleichung
[N:1]1([C:6](=[C:9]2[S:13][C:12]([CH3:15])(Cl)[CH2:11][S:10]2)[C:7]#[N:8])[CH:5]=[CH:4][N:3]=[CH:2]1>O1CCCC1>[N:1]1([C:6](=[C:9]2[S:13][C:12](=[CH2:15])[CH2:11][S:10]2)[C:7]#[N:8])[CH:5]=[CH:4][N:3]=[CH:2]1Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
In 10 ml of tetrahydrofuran were dissolved 0.52 g (0.002 mole) of the 2-(1-imidazolyl)-2-(4-chloro- methyl-1,3-dithiolan-2-ylidene)acetonitrile obtained in Example 2 and 0.31 g of 1,8-diazabicyclo-[5,4,0]-7-undecene, and the reaction was carried out with heating under reflux for 1 hour. After the reaction solution was allowed to cool, the deposited salt was separated by filtration and the filtrate was concentrated to obtain crude crystals, which were then recrystallized from ethyl acetate-n-hexane to obtain 0.35 g of the desired compound in the form of crystals: melting point 115.7° C., yield 79%.