R. Fischer et al., Unexpected reaction of 2,2 '-bipyridyl-cycloocta-1,5-diene-nickel(0) with acetone and dioxygen, J PRAK CH C, 342(1), 2000, pp. 72-74
The reaction of (bipy)Ni(cod) (1) (bipy = 2,2'-bipyridyl, cod = cycloocta-1
,5-diene) with dioxygen and acetone at -20 degrees C affords (bipy)Ni(C9H16
O3) (2) (C9H16O32- = 2,4,6,6-tetramethyl-tetrahydropyran-2,4-diolate), whic
h has been characterized by NMR, MS and an X-ray crystal structure determin
ation. Acidolysis of compound 2 with two equivalents of acetyl acetone (Hac
ac) yields (bipy)Ni(acac)(2) and C9H18O3 (3) (2,4,6,6-tetramethyl-tetrahydr
opyran-2,4-diol), a cyclic trimer of acetone.