反应详情

In 10 ml of methylene chloride was dissolved 10.4 g of N-(2-aminoethyl)propanolamine, and the solution was added to 15.0 g of [bis(methylthio)methylene]propanedinitrile. The mixture was allowed to stand at room temperature for 1 hour under reduced pressure. Diisopropyl ether was added to the mixture, and the solid was collected by filtration. The crystals were purified by silica gel column chromatography (chloroform:methanol=5:1) to give 15.0 g (87%) of Compound (VIa) as pale yellow crystals.

1. filtrationthe solid was collected by filtration
2. customThe crystals were purified by silica gel column chromatography (chloroform:methanol=5:1)