Reaction #3372

Reaction equation

4-mercapto-2-phenyl-pyrimidine-5-carboxylic acid (pyridin-2-ylmethyl)-amide

iodine

→

title compound

Yield 81.6%

6-phenyl-2-pyridin-2-ylmethyl-isothiazolo[5,4-d]pyrimidin-3-one

Yield 81.6%

Conditions

Procedure

Using the procedure of Example 20, 2.0 g (6.20 mmol) of 4-mercapto-2-phenyl-pyrimidine-5-carboxylic acid (pyridin-2-ylmethyl)-amide were treated with 1.73 g (6.82 mmol) of iodine to give 1.62 g of the title compound after recrystallization from isopropanol, mp 154°-156° C.

Source