Recently it was reported3 that the action of excess dioxane sulfotrioxide upon isobutylene gives methylpropene-1, 3-disulfonic acid in considerable amounts. The monosulfonation products of this olefin have now been studied. The disulfonation of isobutylene proceeds at a moderate rate at about 0'in the presence of dioxane3 without serious interference from polymer formation. It seemed possible that in the absence of the dioxane sulfonation might ...
