A New Synthetic Route to (S)-Chroman Aldehyde, a Key Chiral Precursor of Vitamin E
作者:Hisashi Mikoshiba、Koichi Mikami、Takeshi Nakai
DOI:10.1055/s-2001-14642
日期:——
A highly stereocontrolled synthetic route to (S)-chroman aldehyde has been developed which starts with trimethyl-p-hydroquinone and (R)-glyceraldehyde acetonide and employs as key steps the Michael addition of the aromatic copper species onto the (R)-4-acryloyl-1,3-dioxolane followed by the highly diastereoselective methylation of the resulting ketone adduct.