REDUCTIVE SUBSTITUTION OF NICKELOCENE; INTERCEPTION OF A MONOHYDRIDO INTERMEDIATE IN THE HYDROGENATION OF 2,3,4,5-TETRAPHENYLCYCLOPENTADIENONE (TETRACYCLONE)

Article abstract of DOI:10.1016/S0022-328X(00)98686-8

Reductive substitution of nickelocene with tetracyclone affords bis(tetracyclone)nickel(0) (1), η³-1,2,3,4-tetraphenyl-5-ketocyclopentenylcyclopentadienylnickel (2) and trans-1,2,3,4-tetraphenylcyclopenten-1-one-5 (3); evidence is presented that 2 is an intermediate in the formation of 3 from 1.