Redox disproportionation and radical coupling products of formyl(pentamethyl)cobaltocene
摘要:
1-Formyl-1',2',3',4',5'-pentamethylcobaltocene, prepared in situ from formylcyclopentadienide, pentamethylcyclopentadienide, and Co(II) chloride, is unstable and reacts further by redox disproportionation with subsequent radical coupling, yielding decamethyl(dihydro)fulvalene, pentamethylcyclopentadienyl(pentamethylcobaltocenium)-methanol tetraphenylborate and 1,2-bis(pentamethylcobaltocenium)ethan- 1,2-diol bis(tetraphenylborate). Spectroscopic and X-ray structural properties are reported. (C) 1998 Elsevier Science S.A. All rights reserved.