... [CONTRIBUTION FROM THE NOYES~CHEMICAL LABORATORY, UNIVERSITY OF ILLINOIS] ... THIS JOURNAL, 75, 1674 (1953). ... XI11 CHa XV (7) The position of the double bond (A2,' or A2'p) was not deter- (8) N. J. Leonard and S. H. Pines, THIS JOURNAL, 71, e931 (1950). ...