135. “The Reaction of Singlet Oxygen with 1,3-Dimethylindole in the Presence of Aldehydes. Formation of 1,2,4-Trioxanes”
     Jefford, C.W.; Jaggi, D.; Boukouvalas, J.; Kohmoto, S.; Bernardinelli, G.
     Helv. Chim. Acta 1984, 67, 1104-1111.

DOI : 10.1002/hlca.19840670423