Synthesis of Highly Functionalised Carbohydrate-Derived Spiroacetals by Ring-Closing Metathesis and Pauson-Khand Reaction of Ketoglycosidic Enynes
作者:Michiel A. Leeuwenburgh、Chantal C. M. Appeldoorn、Peter A. V. van Hooft、Herman S. Overkleeft、Gijsbert A. van der Marel、Jacques H. van Boom
DOI:10.1002/(sici)1099-0690(200003)2000:6<873::aid-ejoc873>3.0.co;2-1
日期:2000.3
The synthesis of the ketoglycosidic enynes 5, 7 and 8 starting from 2,3,4,6-tetra-O-benzyl-D-glucopyranolactone (2) is described. These enynes are subjected to ruthenium-mediated ring-closing metathesis and Pauson-Khand cyclisation to afford the highly functionalised carbohydrate spiroacetals 9 and 11-14.
所述ketoglycosidic烯炔的合成5,7和8从2,3,4,6-四起始ö苄基d-glucopyranolactone(2)进行说明。这些烯炔进行钌介导的闭环复分解和Pauson-Khand环化,以提供高度官能化的碳水化合物螺缩醛9和11-14。