Kawamura Kenjiro, Fukuzawa Hitomi, Hayashi Masahiko
Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan.
Org Lett. 2008 Aug 21;10(16):3509-12. doi: 10.1021/ol801259u. Epub 2008 Jul 11.
Use of 0.25 mol % of the N, N, P-tridentate ligand containing the 2-quinolyl moiety ( 1 and 2) and 0.1 mol % of Cu(OTf) 2 enabled the enantioselective 1,4-addition of dialkylzincs to cyclic enones to produce 1,4-adducts in up to 99% ee.
使用0.25摩尔%含2 - 喹啉基部分的N,N,P - 三齿配体(1和2)以及0.1摩尔%的Cu(OTf)₂可实现二烷基锌对环状烯酮的对映选择性1,4 - 加成,生成对映体过量高达99%的1,4 - 加合物。