Back to the Sugars: A New Enantio and Diastereocontrolled Route to Hexoses from Furfural
作者:Miwako Takeuchi、Takahiko Taniguchi、Kunio Ogasawara
DOI:10.1055/s-1999-3382
日期:1999.2
An integrated enantio and diastereocontrolled route to both enantiomers of the eight possible hexoses has been explored starting from furfural, by employing the Sharpless asymmetric dihydroxylation as a key step. At the present, a route to six of the eight possible hexoses has been established. The present synthesis may be taken as a reversion of the sugar-originated furfural to the sugars via a levoglucosenone, a pyrolysate of cellulose, type intermediate.
已经探索了一条集成的对映体和非对映体控制路径,从糠醛出发,合成八种可能的六碳糖的两种对映体,采用Sharpless不对称双羟基化作为关键步骤。目前,已建立通往八种可能的六碳糖中的六种的合成路线。本次合成可以看作是通过一种类间歇性中间体——纤维素的热解产物levoglucosenone,将糖源于糠醛的反转回糖的过程。