Carbon-linked disaccharides hetero-Diels-Alder approach

A. Dondoni, L. Kniezo, and M. Martinkova, A stereoselective hetero-Diels-Alder approach to carbon-carbon linked disaccharides, J. Chem. Soc. Chem. Commun. p. 1963 (1994). 

Work in this area has also been carried out with noncyclic carbohydrates. Reaction of the nitro sugar 289 with cyclopentanedienone gave a mixture of 291 and 290 in a 1.9 1 ratio (Scheme 52) [78]. Dondoni used his masked formyl derivative in a hetero-Diels-Alder approach to carbon-linked disaccharides. Cycloaddition of 293 with ethyl vinyl ether gave a mixture of isomers the major compound, 294, is shown in Scheme 52. The cycloadduct was then converted to 295 via standard methods [79]. 

---

See also in sourсe #XX -- [ ]

---