Gaik B. Kok and Mark von Itzstein
The preparation of a range of novel C-4-modified 2,3-unsaturated N-acetylneuraminic acid analogues is reported. These compounds have been prepared from the 4-chloro-4-deoxy-N-acetylneuraminic acid derivatives 10 and 12 by using a palladium(>0>)-mediated coupling with organostannanes.