Oxidative coupling of 7,7-dilithionorbornane; 7,7′-dilithio-7,7′-dinorbornyl, a new vic-dilithioalkane prone to a new mode of decomposition

Article abstract of DOI:10.1016/S0040-4039(00)60647-0

7,7-Dilithionorbornane reacts with butyl halides at -100°C to give 7,7′-dilithio-7,7′-dinorbornyl (30%), which is easily oxidized to 7,7′-dinorbornylidene.