A new flexible and stereoselective protocol for the synthesis of the compounds of the general formula, (Z)-Ph 2 RSiCH=CHSiRPh 2 (where R is an alkyl, alkenyl or alkoxy substituent) has been developed. The title compounds have been efficiently obtained by ruthenium hydride complex [RuHCl(CO)(PCy3)2]-catalyzed (Z)-selective silylative coupling cyclization of 1,2-bis(diphenylvinylsiloxy)ethane or N,N'-dimethy1-N