Nikita V. Shvydkiy, Yulia V. Nelyubina, Dmitry S. Perekalin
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Synthesis, reactivity, and catalytic application of tetraphenylcyclobutadiene iridium complexes
Reaction of [(coe)2IrCl]2 (coe = cyclooctene) with AgPF6, arene (toluene, p-xylene, mesitylene), and diphenylacetylene, followed by counter anion exchange to BARF–, gives cyclobutadiene iridium complexes [(C4Ph4)Ir(arene)]BARF in 10–22% yield. Replacement of toluene in [(C4Ph4)Ir(toluene)]BARF by various ligands (trimethyl-phosphite, 1,3,5-triaza-7-phosphaadamantane, tert-butyl isonitrile) provides access to the half-sandwich cyclobuta-diene iridium complexes [(C4Ph4)Ir(L)3]BARF. Complex [(C4Ph4)Ir(toluene)]BARF in combination with [NBnEt3]Cl catalyses the insertion reaction between phenyl diazoacetate and various amines.
期刊介绍：
Mendeleev Communications is the journal of the Russian Academy of Sciences, launched jointly by the Academy of Sciences of the USSR and the Royal Society of Chemistry (United Kingdom) in 1991. Starting from 1st January 2007, Elsevier is the new publishing partner of Mendeleev Communications.
Mendeleev Communications publishes short communications in chemistry. The journal primarily features papers from the Russian Federation and the other states of the former USSR. However, it also includes papers by authors from other parts of the world. Mendeleev Communications is not a translated journal, but instead is published directly in English. The International Editorial Board is composed of eminent scientists who provide advice on refereeing policy.
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