n-butyllithium; [1,3-bis(diphenylphosphino) propane] dichloronickel(II) 1.) hexane, benzene, RT, 15 min, 2a.) ether, reflux, 15 min, 2b.) 80 deg C, 6 h; Yield given. Multistep reaction;

n-butyllithium; [1,3-bis(diphenylphosphino) propane] dichloronickel(II); methylmagnesium bromide 1.) hexane, benzene, RT, 15 min, 2a.) ether, reflux, 15 min, 2b.) 80 deg C, 3.5 h; Yield given. Multistep reaction;