91879-23-1Relevant academic research and scientific papers
Preparation and Properties of, and Reactions with, Metal-Containing Heterocycles, XLV. Directed Preparation of Ferracyclopropanes and -pentanes as Reactive Intermediates in the Organic Synthesis
Lindner, Ekkehard,Schauss, Eckard,Hiller, Wolfgang,Fawzi, Riad
, p. 3915 - 3931 (2007/10/02)
The complexes (OC)3LFe(η2-C2H4) (5a-c) and ferracyclopentanes (6ax-cx, 6ay, by, 6az) and ferrahydrindanes (7a,b), respectively, are obtained by nucleophilic elimination-cycloaddition on the bis(triflates) Y-2-Y (2), 2 (3x-z) and cyclo-C6H10(CH2-Y)2 (4) with the bifunctional anions 2- (1a-c) a), PPh3 (b), P(OMe)3 (c)> in dimethylether and ether, respectively. 5a and 6ax are reactive intermediates in the Fe(CO)5-catalysed olefin carbonylation. 6bx and 5b crystallize from n-butane and n-pentane in the triclinic and monoclinic space group P1/ and C2/c with Z = 2 and 8, respectively.In 5b ethene is located equatorially, 6bx has twist conformation.The thermal decomposition of 6ax and 7a is investigated in the presence and absence of CO.While 6ax behaves indifferent towards liquid SO2, into the Fe-C ? bond, which is in trans-position to the PPh3 ligand, SO2 can be inserted under formation of the cyclic sulfinato-S complex 9.
