The azo compounds 17-A and 17-B were prepared and the thermal and photochemical behavior of these materials was investigated. The results are summarized in the Formulas below. It is also known that...

The azo compounds 17-A and 17-B were prepared and the thermal and photochemical behavior of these materials was investigated. The results are summarized in the Formulas below. It is also known that triplet photosensitization converts 17-C to 17-D and 17-E to 17-F, respectively. Discuss how these results relate to the mechanism of the di--methane rearrangement