Stereoselective Synthesis of β-Hydroxyallenes with Multiple Contiguous Stereogenic Centers via Aldehyde Addition to α-Alkenyl-Substituted Zirconacyclopentenes
作者:Yebing Zhou、Jingjin Chen、Chunbin Zhao、Erjuan Wang、Yuanhong Liu、Yuxue Li
DOI:10.1021/jo900808k
日期:2009.8.7
A highly stereoselective methodology for the synthesis of β-hydroxyallenes with multiple stereogenic centers including allenic axialchirality, as well as center chirality, via addition of α-alkenylzirconacyclopentenes to aldehyde is described. Remarkably, the reaction occurs with completely different chemoselectivity in comparison with the usual alkyl- or aryl-substituted zirconacyclopentenes; that