作者:Thomas Gendrineau、Jean-Pierre Genet、Sylvain Darses
DOI:10.1021/ol902646j
日期:2010.1.15
For the first time the rhodium-catalyzed 1,4-addition of organoboranes to hindered Baylis−Hillman adducts, trisubstituted alkenes, affording highly functionalized alkenes, via addition of the organoboranes and hydroxyelimination, is reported. Moreover, preliminary results have shown that, thanks to the use of a monosubstituted chiral diene ligand, enantio-enriched products were easily accessible, while
首次报道了铑催化的将有机硼烷加成到受阻的Baylis-Hillman加合物上的1,4-加成反应,即三取代的烯烃,通过添加有机硼烷和羟基消除作用,提供了高度官能化的烯烃。此外,初步结果表明,由于使用了单取代的手性二烯配体,对映体富集的产品很容易获得,而手性膦配体完全不适合该反应。