1-Phenylsulfonyl glycals undergo an easy Ni(0)-catalysed coupling with tributylstannylmagnesium bromide to give the corresponding 1-tributylstannyl glycals in good yield.
1-Lithiated glycals generated by reaction of 1-phenylsulfinyl glycals with either t-BuLi or PhLi are transformed to 1-tributylstannyl glycals on reaction with tributyltin chloride.