Intermediates in the dehydrogenation of 3,3′,4,4′-tetrahydro-1,1′-binaphthyl. Some hydrogenated 1,1′-binaphthyls and benzo[j]fluoranthenes

Abstract

3,3′,4,4′-Tetrahydro-1,1′-binaphthyl can undergo dehydrogenation and cyclodehydrogenation simultaneously. Possible intermediates with various degrees of hydrogenation have been prepared and characterised. Some of these have been recognised as intermediates and thus the respective courses of the two parallel reactions have been traced.