Treatment of isocyanates with tertiary alcohols in the presence of catalytic amount (10 mol%) of samarium diiodide and HMPA in the THF at -78 °C under mild conditions afforded the corresponding carbamates in excellent yields within a few minutes.
在催化量的二
碘化钐(10摩尔%)和HMPA的存在下,于-78°C在THF中温和条件下,
异氰酸酯与叔醇反应,几分钟后即以优异的产率得到了相应的
氨基甲酸酯。