Solution photodimerization of 1,3-dimethyluracil
Abstract
The photodimerization of 1,3-dimethyluracil in a variety of organic solvents is described. The reactions lead to the formation of the four possible cyclobutane-type dimers, the relative amounts depending on the solvent employed. The structures and stereochemistry of the dimers are described and a triplet state is proposed as their precursor.