Author/Authors :
Zhang، نويسنده , , Zuliang and Liu، نويسنده , , Xiaohua and Wang، نويسنده , , Zhen and Zhao، نويسنده , , Xiaohu and Lin، نويسنده , , Lili and Feng، نويسنده , , Xiaoming، نويسنده ,
Abstract :
The catalytic enantioselective Michael additions of cyclic β-ketoamides to nitroolefins and alkynones were accomplished in the presence of chiral N,N′-dioxide–Co(II) complexes. The desired adducts were obtained in high yields (up to 98%) with excellent enantioselectivities (up to 97% ee).
Keywords :
Asymmetric catalysis , Michael reaction , ?-ketoamides , Alkynones , Nitroolefins
