Palladium-Catalyzed Regio- and Stereoselective Formate Reduction of Fluorine-Containing Allylic Mesylates. A New Entry for the Construction of a Tertiary Carbon Attached with a Fluoroalkyl Group
作者:Tsutomu Konno、Tsuyoshi Takehana、Makoto Mishima、Takashi Ishihara
DOI:10.1021/jo0602120
日期:2006.4.1
regioselective palladium-catalyzed formate reduction of γ-fluoroalkylated allylic esters is described. Reduction of the allylic esters under the influence of palladium with a monodentate phosphine ligand proceeded preferentially at the γ position, the corresponding reduction products with a fluoroalkyl group at the tertiary carbon being afforded in high yields. When the chiral allylic ester was employed
描述了区域选择性钯催化的γ-氟代烷基化的烯丙基酯的甲酸还原。在钯的影响下,在单齿膦配体的作用下,烯丙基酯的还原反应优先在γ位置进行,从而以高收率得到了相应的在叔碳原子上带有氟代烷基的还原产物。当使用手性烯丙基酯时,观察到完全的手性转移,从而以高收率得到光学活性材料。