chlorides (II, X= N (CH3h) and of the corresponding p-toluenesulphonates (I and II, X= OTs) has been studied using five different base-solvent combinations. Quantitative data have been obtained on the contribution of syn-and anti-elimination to the formation of the trialkylated oletins III and V indicating that both the processes may play an important role in dependence on the conditions used. The discovery that the two mechanisms operate in ...