A flurry of {recent|current} {research|study|analysis|investigation} has centered on harnessing the {power|energy} of nickel catalysis in organic synthesis. These efforts {have been|happen to be|have already been} bolstered by contemporaneous synthesis, characterization, and optimization of well-defined nickel (pre)catalysts with diverse structure and reactivity. {In this|Within this} report, we present the {development|improvement} of ten {different|various|distinct|diverse|unique|distinctive} bench-stable, 18-electron, formally zero-valent nickel–olefin complexes {that are|which are|which can be|which might be|that happen to be} shown {to be|to become} competent pre-catalysts in {various|numerous|different|a variety of|several|many} reactions. Our investigation {includes|consists of|contains|involves|incorporates} preparations of novel, bench {stable|steady} Ni(COD)(L) complexes, in which L = quinone, cyclopentadienone, thiophene-S-oxide, and fulvene. Characterization by a battery of {techniques|methods|strategies|tactics|approaches|procedures}, {including|such as|which includes|like} NMR, IR, single-crystal X-ray diffraction, cyclic voltammetry, thermogravimetric {analysis|evaluation}, and {natural|all-natural|organic} bond orbital {analysis|evaluation} sheds light {on the|around the} structure, bonding, and properties {of these|of those} complexes. Kinetic profiling across a series of representative reactions reveals reactivity {differences|variations} that stem {from the|in the} nature {of the|from the|in the|on the|with the|of your} ancillary ligand, underscoring the complementary relationships {between|in between|among|amongst|involving} {each|every|each and every|every single} pre-catalyst {within|inside} this toolkit. 1210830-60-6 Purity 9-Oxo-9H-fluorene-4-carboxylic acid web PMID:24518703
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