Enantioselective addition of diethylzinc to aldehydes catalyzed by titanium(IV) complexes of N-sulfonylated amino alcohols with two stereogenic centers
作者:Jing-Song You、Ming-Yuan Shao、Han-Mou Gau
DOI:10.1016/s0957-4166(01)00522-5
日期:2001.11
Bidentate N-sulfonylated amino alcohols with one or two stereogenic centers were prepared and applied as chiral ligands in the titanium(IV)-catalyzed asymmetric addition of diethylzinc to aldehydes, affording excellent enantioselectivities of up to 98% e.e.
制备具有一个或两个立体生成中心的双齿N-磺酰化氨基醇,并将其用作手性配体,用于钛(IV)催化的二乙基锌与醛的不对称加成中,可提供高达98%ee的出色对映选择性