Reactions of
Sallyl systems (allyl sulphides of R
S
allyl type, where R=Et, allyl, Ph, Me
3C, Ph
3C, as well as of allyl phenyl sulphoxide, allyl phenyl sulphone, 2,5-dihydro-1,1-dioxothiophene) with [RuClH(CO)(PPh
3)
3] and other ruthenium compounds have been investigated. Double-bond migration was observed in the case of allyl trityl sulphide, allyl
t-butyl sulphide and both sulphones, that is, where co-ordinating properties of sulphur were not too strong. High-yielded syntheses of (
E)- and (
Z)-R
S
CH
CHCH
3 (R=Me
3C,
Z:
E