Abstract Reaction of 2, 2′-dilithio-1, 1′-binaphthyl with selenium followed by air oxidation gives a mixture of dinaph-thoselenophene and dimer and oligomers of 2, 2′-diseleno-1, 1′-binaphthyl. 2, 2′-Dilithio-1, 1′-biphenyl reacts with selenium to afford dibenzo [c, e][1, 2] diselenin. Structures of the dimeric 2, 2′-diseleno-1, 1′-binaphthyl and dibenzo [c, e][1, 2] diselenin have been confirmed by X-ray crystallographic analyses. Similar reaction of 2, ...
