Studies on Cyclic Bis(η5:?-2-cyclopentadienylidene-ethyl)- and Bis(η5:?-4-cyclopentadienylidenebutyl)-molybdenum Compounds

DOI: 10.1039/DT9850001585

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1585 - 1590 (1985)

Update date:2022-07-29

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Authors:

Green, Malcolm L. H.

O'Hare, Dermot

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Article abstract of DOI:10.1039/DT9850001585

Co-condensation of molybdenum atoms with spiro<4.4>nona-1,3-diene gives the compound 5:?-C5H4(CH2)3CH2>2> (1).Protonation of (1) causes the cleavage of only one Mo-C bond and following a β-elimination reaction a mixture of exo- and endo-5-C5H4Buⁿ)(η⁵:η²-C5H4CH2CH2CH=CH2)H>PF6 (2) is formed.Treatment of (2) with NaOH gives 5-C5H4Buⁿ)(η⁵:η²-C5H4CH2CH2CH=CH2)> (3).Compound (1) with iodine gives 5-C5H4Buⁿ)(η⁵-C5H4CH2CH2CH=CH2)I2> (4).Treatment of 5:?-C5H4CH2CH2)2> with benzoic acid forms 5-C5H4Et)(η⁵:?-C5H4CH2CH2)(O2CPh)> (5), which with SiMe3Cl forms 5-C5H4Et)2Cl2> (6) and 5-C5H4Et)(η⁵:?-C5H4CH2CH2)Cl> (7).Compound (7) reacts with PMe2Ph giving the cation 5-C5H4Et)(η⁵;?-C5H4CH2CH2)(PMe2Ph)>⁺ (8).

Full text of DOI:10.1039/DT9850001585

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