1,3-Dithiane addition to various aldehydes and ketones using 2-trimethylsilyl-1,3-dithiane in the presence of a catalytic amount of a Lewis base such as tetrabutylammonium phenoxide (PhONn-Bu4) proceeds smoothly to afford the corresponding α-hydroxy dithiane compounds in good to high yields under mild conditions.
1,3-二
硫烷在存在催化量路易斯碱(如四丁基
铵苯氧化物(PhONn-Bu4))的条件下与各种醛和酮的加成反应,使用2-三甲基
硅基-1,3-二
硫烷,可以顺利进行,得到相应的α-羟基二
硫烷化合物,产率良好到高,并且反应条件温和。