Acetone-sensitized cis–trans photoisomerization of octa-2,6-dienes
Abstract
A comparison of the acetone-sensitized cis–trans photoisomerization of the octa-2,6-dienes and of the pent-2-enes shows that no two bond isomerization per quantum of excitation occurs, ϕtt→cc=ϕcc→tt= 0, and that with respect to diene interconversion, cis and trans double bonds in the octa-2,6-dienes behave exactly like cis and trans double bonds in the pent-2-enes.