Pr. Pokkuluri et al., THE PHOTOLYSIS PRODUCT OF DIMETHYL -DIHYDRO-1,4-ETHENO-ANTHRACENE-11,12-DICARBOXYLATE, Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 581-583
Photolysis of the title compound (1) produces a semibull-valene photop
roduct dimethyl ,4]pentaleno[1,2-b]naphthalene-2a,8c-dicarboxylate (2)
via a di-pi-methane rearrangement. The molecule of (2) contains a thr
ee-membered ring and has geometry and dimensions similar to those of r
elated materials.