The application of bis(oxazoline) ligands in the catalytic enantioselective methallylation of aldehydes
作者:Gr?inne C. Hargaden、Helen A. McManus、Pier Giorgio Cozzi、Patrick J. Guiry
DOI:10.1039/b618516a
日期:——
A series of symmetric and non-symmetric bis(oxazoline) ligands were applied in the Nozaki-Hiyama-Kishi methallylation of a range of aromatic and aliphatic aldehydes. A non-symmetrical ligand with tert-butyl/benzyl-substituted oxazolines provided the highest enantioselectivity of 99.5% for the methallylation of benzaldehyde.
一系列的对称和非对称双(恶唑啉)配体被用于一系列芳族和脂族醛的Nozaki-Hiyama-Kishi甲基烯丙基化反应中。具有叔丁基/苄基取代的恶唑啉的不对称配体为苯甲醛的甲基化提供了最高的对映选择性,为99.5%。