described for examples 1 and 2 the same quantity 19 76 grams of the same c 16 olefin mixture was contacted with 15 1 grams of methyl acrylate in the presence of a catalyst comprising 0 59 grams of anhydrous aluminum chloride 0 37 grams of cesium chloride and also in the presence of 0 05 grams of hydroquinone the contact took place in the autoclave at a temperature of 100 u00b0 c for a total of 16 hours analysis of the final reaction mixture indicated a 96 conversion of the vinylidene olefins the product of the vinylidene olefin reaction comprised 86 unsaturated c 19 methyl ester 3 8 c 22 unsaturated diester and 10 c 16 saturated chlorides the general procedures were again applied to the contact of the same quantity of the same c 16 olefin mixture with 7 56 grams of the methyl acrylate reactive agent in this case however the contact between the olefin mixture and the reactive agent was continued beyond the point of essentially complete conversion of the vinylidene olefin in the mixture the contact was not terminated prior to substantial conversion of the mixture 39 s linear olefin component in the presence of a catalyst comprising 2 35 grams of anhydrous aluminum chloride 0 32 grams of potassium chloride 0 24 grams of sodium chloride and 0 05 grams of hydroquinone contact over 5 hours at 100 u00b0 c and under nitrogen atmosphere converted not only 100 of the vinylidene component but also 41 of the linear component this example shows that the process selectivity to the conversion of only the vinylidene olefin component of the mixture is decreased if.