Synthesis and catalytic activity of rhodium diene complexes bearing indenyl-type fullerene η5-ligand
摘要:
Rhodium eta(5)-complexes bearing an indenyl-type fullerene ligand, Rh[C-60(PhCH2)(2)Ph](cod) (2), Rh[C-60(PhCH2)(2)Ph](nbd) (3) and Rh(C70Ph3)(cod) (4), have been synthesized from the corresponding fullerene tri-adducts in 93-96% yields. X-ray crystallographic analysis of 4 indicated that the structure of 4 is similar to that of Rh(Ind)(cod). The rhodium complex 2 catalyzes alkyne trimerization reactions and hydroboration reactions. (C) 2003 Elsevier B.V. All rights reserved.
Regioselective synthesis of [60]fullerene η<sup>5</sup>-indenide R<sub>3</sub>C<sub>60</sub><sup>−</sup>and η<sup>5</sup>-cyclopentadienide R<sub>5</sub>C<sub>60</sub><sup>−</sup>bearing different R groups
Treatment of a 1,7-diorgano[60]fullerene with Grignard reagents or organocopperreagents affords a [60]fullerene indenide or a [60]fullerene cyclopentadienide regioselectively in good to excellent yields. These reactions gave an insight into the reaction mechanism of the organocopper penta-addition reaction of [60]fullerene, giving [60]fullerene cyclopentadienide in quantitative yield.