Acetone → HCID 70447139, compound

Participants

Reaction Conditions

Reaction Steps

2.15 g of 5-methoxy-3-ethyl-2-methylbenzothiazolium p-toluenesulfonate and 1.0 g of 4-methylcoumarin-2-thione were reacted under heat at 150° C. for 20 hours, and then 15 ml of methanol and 12 ml of acetone were added to the reaction mixture to obtain a uniform solution. 1.7 g of sodium iodide (in the form of a solution in 5 ml of acetone) was added dropwise to said solution and stirred at room temperature, whereby crystals precipitated out therefrom. The crystals formed were separated by filtration and washed with a small amount of acetone, and then the crystals were placed in 20 ml of water at room temperature and stirred for 15 minutes. Then, the crystals were again separated by filtration and washed with acetone, to obtain 1.02 g of the desired iodide product. Yield: 38%. Appearance: brown crystal. M.p.: 273°-274° C. (decomposition).

Provenance & Evidence