1246384-01-9Relevant academic research and scientific papers
Synthesis and reaction chemistry of heterodi- and heterotrimetallic transition-metal complexes based on 1-(Diphenylphosphanyl)-1'- terpyridylferrocene
Hildebrandt, Alexander,Wetzold, Nora,Ecorchard, Petra,Walfort, Bernhard,Rueffer, Tobias,Lang, Heinrich
, p. 3615 - 3627 (2011/01/07)
The reaction of [Fe(η5-C5H4PPh 2)(η5-C5H4terpy)] (5; terpy = 2,2':6',2''-terpyridin-4'-yl) with diverse transition-metal compounds including [PtCl2(Et2S)2], [Pd(cod)X2], [AuCl(tht)], [CuBr], [Mo(CO)4(nbd)], and [{RhCl(cod)}2] (X = Cl, Br; tht = tetrahydrothiophene; nbd = norbornadiene; cod = cyclooctadiene) to afford heterobi- and trimetallic complexes and a coordination polymer is reported. The following compounds were prepared: [Fe(η5-C 5H4PPh2{PtCl2(SEt 2)})(η5-C5H4terpy)] (7), trans-[PtCl2{(Ph2P-η5-C5H 4)(η5-C5H4terpy)-Fe} 2] (9), [Fe(η5-C5H4PPh 2PdCl2)(η5-C5H 4terpy)] (12), [Fe{η5-C5H 4PPh2(Cl3Pd-)}(η5-C 5H4terpy{(dmso)2ClNi+})] (14), trans-[PdX2{(Ph2P-η5-C5H 4)(η5-C5H4terpy)Fe} 2] (16a, X = Cl; 16b, X = Br), [Mo(CO)4{(η 5-C5H4PPh2)(η5-C 5H4terpy)Fe}2] (17), [Fe{η5- C5H4Ph2P(CuBr)}(η5-C 5H4terpy)]n (19), [Fe{η5-C 5H4Ph2P(AuCl)}(η5-C 5H4terpy)] (22), [Fe(η5-C5H 4Ph2P-{Rh(cod)Cl})(η5-C5H 4terpy)] (23), [Ru({η5-C5H 4Ph2P(AuCl)}-(η5-C5H 4terpy)Fe)2]Cl2 (25), and [Fe{η5-C 5H4PPh2-(PdCl2)}{η5- C5H4-CH=CHC(O)(py)}] (26). The molecular structures of 5, 9, 12, 14, 16b, 22, and 26 in the solid state are reported. They show typical features of related phosphanylferrocenes and terpyridylferrocenes. Characteristic of 12 is a C-H activation as a result of the close distance of palladium to the terpyridyl moiety. Complexes 12, 26, and [PdCl2(dppf)] [dppf = 1,1'-bis(diphenylphosphanyl)ferrocene], for comparison, were used in preliminary studies as catalysts in the carbon-carbon coupling of iodobenzene with tert-butyl acrylate to give (E)-tert-butyl cinnamate. The conversion amounts to 80% with a turnover number of 160 and turnover frequency of 48 h-1.
