Jb. Meng et al., A DUAL PATHWAY IN THE SOLID-STATE PHOTOREACTION OF NITROBENZALDEHYDESWITH INDOLE, Journal of heterocyclic chemistry, 31(1), 1994, pp. 121-124
The solid-state photoreaction of the mixed crystals between nitrobenza
ldehydes and indole was found to give nitrophenyl-(bis-3-indolyl)metha
ne (3) and nitrophenyl-(3-indolyl)methanol (4). The structure of the o
rtho isomer 4c was established by X-ray crystallographic analysis. A d
ual pathway from an oxetane intermediate 5 is proposed for the formati
on of 3 and 4.