Lawesson's reagent → HCID 22401664, compound

Participants

Reaction Steps

In 50 ml of toluene was dissolved 2.08 g (10.0 mmol) of Compound 2 prepared in Example 2, and 4.45 g (11.0 mmol) of Lawesson's reagent was added to the solution, followed by heating under reflux for 30 minutes. After cooling, the precipitated crystals were collected by filtration, and then washed with toluene. The crystals were subjected to silica gel column chromatography and eluted with chloroform to give 1.90 g (85%) of Compound 39. The compound was recrystallized from chloroform/ethanol for purification.

Provenance & Evidence