Catalytic Enantioselective Allenylation Reactions of Aldehydes with Tethered Bis(8-quinolinolato) (TBOx) Chromium Complex
作者:Guoyao Xia、Hisashi Yamamoto
DOI:10.1021/ja0679578
日期:2007.1.1
The utility of the new class of chiral ligand, tethered bis(8-quinolinol) (TBOxH), is further explored. Its chromium complex, TBOxCr(III)Cl, effectively catalyzes the asymmetric allenylation reactions of various aldehydes at room temperature with high yields (up to 91%) and high enantioselectivities (up to 97% ee). The scope of the present method is shown to be wide, and this method represents an efficient
进一步探索了新型手性配体系链双(8-羟基喹啉)(TBOxH)的用途。其铬配合物 TBOxCr(III)Cl 可在室温下有效催化各种醛的不对称烯丙基化反应,收率高(高达 91%)和对映选择性(ee 高达 97%)。表明本方法的范围很广,该方法代表了有效获取手性 α-丙二烯醇的方法。