Efficient Conversion of Carbohydrates into 1-<i>C</i>-Alditols: Application to the Synthesis of Chiral γ-Substituted Butenolides and Bicyclic Alkaloid Analogues
作者:Alicia Boto、Dácil Hernández、Rosendo Hernández
DOI:10.1021/jo800478a
日期:2008.7.1
steps into valuable, more complex products. The tandem radical scission of carbohydrates−oxidation reaction gave acetoxy acetals, which were converted into a variety of chiral C-alditols in good global yields and excellent 1,2-trans stereoselectivity. The reaction was the key step in the synthesis of hydroxylated γ-substituted butenolides and bicyclic alkaloid analogues.
现成的糖衍生物只需几步即可转化为有价值的,更复杂的产品。碳水化合物的串联自由基断裂-氧化反应产生了乙酰氧基缩醛,该乙酰氧基缩醛以良好的总体收率和优异的1,2-反式立体选择性被转化为多种手性C-醛糖醇。该反应是合成羟基化的γ-取代的丁烯内酯和双环生物碱类似物的关键步骤。