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Tsunoda试剂活性逆天，二醇竟然可以发生Mitsunobu反应制备环醚！
浓缩，柱层析纯化。 1) (Cyanomethylene)tributylphosphorane (262 L, 1.00 mmol) was added to a solution of (tetrahydrofuran-3-yl)methanol (51 mg, 0.50 mmol) and ...