Author/Authors :
Jia، نويسنده , , Qiang and Xie، نويسنده , , Wenhua and Zhang، نويسنده , , Wei and Janczuk، نويسنده , , Adam and Luo، نويسنده , , Sanzhong and Zhang، نويسنده , , Baolian and Cheng، نويسنده , , Jin Pei and Ksebati، نويسنده , , Mohamad B and Wang، نويسنده , , Peng G، نويسنده ,
Abstract :
Ytterbium(III) triflate was found to catalyze the electrophilic cyclization of some glyoxalate-derived unsaturated imines. The cyclization reactions gave exclusively fused amino γ-lactone products with good stereoselectivity. Moreover, a solid-phase version of the lanthanide-catalyzed reaction featured a lactonization with simultaneous cleavage of the product from the solid support.