反应详情

A mixture of the thiatriazinone from Step 2. above (77.3 g) and phosphorus pentachloride (92.4 g) in phosphorus oxychloride (230 ml) is refluxed overnight. The reaction mixture is evaporated at 50° C. yielding an oil (92.3 g) which is used without further purification in the next step.

1. customThe reaction mixture is evaporated at 50° C.