Cremlyn, Richard J.; Swinbourne, Frederick J.; Bassin, Paul, Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 63, # 3/4, p. 385 - 396
Highly selective controllable Michael additions of indolin-2-one with 2,4-dien-1-ones
作者:Geyang Song、Zheng Li
DOI:10.1007/s11696-018-0393-y
日期:2018.6
AbstractHighly selective C3 position controllable mono-Michael additions or di-Michael additions of indolin-2-one to 2,4-dien-1-ones are described. The method was applied to a wide range of substrates and demonstrated excellent tolerance to a variety of substituents. This protocol has advantages of high selectivity, high atom economy, high yield, and mild conditions. Graphical abstract
Regiospecific 1,4-Michael Addition of Phenylacetonitrile to 1,5-Diarylpenta-2,4-Dien-1-Ones
作者:Zheng Li、Wenli Song
DOI:10.3184/174751918x15314820245660
日期:2018.7
The regiospecific 1,4-Michael addition of phenylacetonitrile to (2E,4E)-1,5-diarylpenta-2,4-dien-1-ones produced 12 novel (E)-3-(2-oxo-2-arylethyl)-2,5-diarylpent-4-enenitriles in 77-88% yield. The advantages of the method are broad substrate scope, mild conditions, good to high yields and high selectivity. The method can also be extended to a gram scale.