110096-70-3Relevant academic research and scientific papers
Synthesis, spectra, and crystal structure of novel isomerized products of (cyclooctatetraene)dicarbonyl(ethoxyarylcarbene)iron and (8,8-dihydro-3-5-η-cyclooctatrienyl)tricarbonylaryliron complexes
Chen, Jiabi,Lei, Guixin,Xu, Weihua,Pan, Zuohua,Zhang, Shiwei,Zhang, Zeying,Jin, Xianglin,Shao, Meicheng,Tang, Youqi
, p. 2461 - 2470 (2008/10/08)
(Cyclooctatetraene)tricarbonyliron(I) reacts with ArLi (Ar = C6H5, p-, o-, or m-CH3C6H4, p-CF3C6H4, C6Cl5) in ether at -100°C to yield acylmetalate complexes, from which, by subsequent alkylation with Et3OBF4 in CH2Cl2 at low temperature or in aqueous solution at 0°C, orange-red crystalline complexes of composition C8H8(CO)2FeC(OC2H5)Ar (IIIa-d) and/or yellow crystalline complexes with composition C8H9(CO)3FeAr (IVa-f) were obtained. It was established that complexes IIIa-d were isomerized products of (cyclooctatetraene)dicarbonyl(ethoxyarylcarbene)iron complexes with two types of structure and complexes IVa-f were (8,8-dihydro-3-5-η-cyclooctatrienyl)tricarbonylaryliron complexes based on elemental analyses and IR, 1H NMR, and mass spectra as well as single-crystal X-ray structure determinations. A possible reaction mechanism is tentatively proposed and discussed in this paper.
