Variously substituted glycals are readily prepared from glycosyl bromides using (Cp2TiCl)2

Article abstract of DOI:10.1016/0040-4039(96)00865-9

Glycosyl halides, variously substituted with ether, acetal, or ester protecting groups, were converted to the corresponding glycals in high yield by reaction with (Cp₂TiCl)₂. A glycosyl chloride was less reactive than the analogous bromide.