- Preparation, Properties, and Reactions of Metal-Containing Heterocycles, XCVI. Mono-, Di- and Trinuclear Metallacycloalkanes of the Iron-Triad
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The reaction of the bis(triflates) with Na2 in dimethyl ether affords the osmacycloalkanes 2a, 2b and 2f-i (m = 5, 6, 10, 12, 14, 16), diosmacycloalkanes 3a-i (m = 5-10, 12, 14, 16), and triosmacycloalkanes 4a-i (m = 5-10, 12, 14, 16).The structure of 3f was investigated by an X-ray structural analysis.This 22-membered diosmacycle crystallizes in the space group P1/ with Z = 1.If the unsaturated cis-4-octen-1,8-diyl bis(trifluoromethanesulfonate) (5) is treated with Na2 the diosmacyclooctadeca-5,14- diene 6 is obtained.By treating the bis(triflates) 1a, d with Na2 the corresponding ferracycloalkanes are formed only in situ.Insertion of carbon monoxide into the M-C ? bonds leads to the cyclic ketones 7a, d and to the diketone 8d. - Keywords: Metallacycloalkanes; Metallacycloalkenes; Osmium; Iron; Cyclic ketones; Metallacycles
- Lindner, Ekkehard,Leibfritz, Thomas,Fawzi, Riad,Steimann, Manfred
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p. 347 - 356
(2007/10/03)
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