Return to Abstracts of Literature

Return to Abstracts of Literature 1750-1999

Literature Abstracts

 1836a.    KOCH, H., AND VAN RAAY, H. [Individual Branched Hexenes and Their Isomerization Equilibria.]  Brennstoff-Chem., vol. 32, 1951, pp. 161-174; Chem. Abs., vol. 45, 1951, p. 8238.

          During the war, catalytic isomerization reactions were of importance in increasing the octane number of synthetic gasoline; such reactions are also of importance in preparing a variety of products from the alcohols obtained in the oxo synthesis by varying the position of the double bond.  The reaction mechanisms of the isomerization of olefins and isomerization dehydration of alcohols are reviewed.  A Co gasoline-synthesis catalyst permitted equilibrium to take place smoothly in an autoclave at 190° between 2, 3-dimethyl-l-butene and 2, 3- dimethyl-2-butene while the isomerization of the 2-methylpentenes did not progress under similar conditions.