Tandem one-pot synthesis of α-(aminomethylene)-γ-butyrolactones via regioselective epoxide ring-opening with the Blaise reaction intermediate
作者:Young Ok Ko、Yu Sung Chun、Youngmee Kim、Sung Jin Kim、Hyunik Shin、Sang-gi Lee
DOI:10.1016/j.tetlet.2010.10.108
日期:2010.12
A novel tandem one-pot method for the synthesis of α-aminomethylene-γ-butyrolactone derivatives has been developed through the regioselective epoxide opening reactions with the Blaise reaction intermediates, generated by the reaction of a Reformatsky reagent with nitriles. Formation of a modified Blaise reaction intermediate by the addition of a stoichiometric amount of n-BuLi followed by slow addition
通过与Relaskysky试剂与腈反应生成的Blaise反应中间体进行区域选择性环氧化物开环反应,已开发出一种新颖的串联一锅法合成α-氨基亚甲基-γ-丁内酯衍生物。为了获得良好的γ-丁内酯收率,需要通过添加化学计量的n -BuLi,然后缓慢添加环氧化物来形成修饰的Blaise反应中间体。