Methanethiol → HCID 73867527, compound

Participants

Reaction Steps

1.45 g of absolute morpholine are added under an argon atmosphere to 4.1 g of 1,3-bis-(benzylideneamino)-2-(methylthio)imidazolium tetrafluoroborate in 15 ml of absolute dimethylformamide, whereby the evolution of methyl mercaptan occurs immediately and a yellow-orange solution results. The solution is stirred at room temperature until the cleavage of methyl mercaptan is complete (about 12 hours). Then the solution is treated with 120 ml of diethyl ether and the resulting, slightly yellowish precipitate is removed by filtration under suction. The precipitate is washed five times with diethyl ether, and twice with a small amount of cold ethanol and re-precipitated from acetonitrile/diethyl ether. There is obtained colorless 1,3-bis(benzylideneamino)-2-morpholinoimidazolium tetrafluoroborate of melting point 242°-245° (decomposition).

Provenance & Evidence