in dichloromethane further products. under N2, stirring of a soln. of the W-complex at room temp. for 1.5 h, then at 35°C. for another 2 h;; evapn. of solvent in vac., dissolving (pentane/CH2Cl2), chromy. (-25°C, silica gel, pentane/CH2Cl2), elem. anal.;;

byproducts: (2-butylcyclopropyl)benzene; dissolving in 1-hexene at room temp.;; GC, DC (silica gel, hexane) for the organometallic products;;

byproducts: (2-ethoxycyclopropyl)benzene; dissolving in 1-hexene at room temp.;; GC, DC (silica gel, hexan) for the organometallic products;;