反应详情

400 mg of tert-butyl 5-cyclopropyl-1,1-dioxo-[1,2,5]thiadiazolidine-2-carboxylate were dissolved in 10 ml of CH2Cl2/trifluoroacetic acid 1:1 and left to stand for 2 hours. The volatile constituents were removed in vacuo and coevaporated twice with 50 ml of CH2Cl2 each time. 410 mg of pale yellow oil were obtained and were directly employed further.

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2. customThe volatile constituents were removed in vacuo