The functionalised vinylstannanes of the type (E)/(Z)-Ph3SnCR′ CHYRn and (E)/(Z)- Ph3SnC (YRn) CHR′(YRn= NMe2, OEt, SMe, SEt; R′= Ph, Bu (n-butyl), Pe (n-pentyl), H) were prepared by non-catalysed or Pd-catalysed hydrostannylation reactions. Particular stereoisomers were isolated by means of preparative HPLC and fully characterised using 1H-, 13C-and 119Sn-NMR spectroscopy. The reactions of 2-functionalised vinylstannanes ...