Bis(η-cyclopentadienyl)-molybdenum and -tungsten chemistry: σ- and η-allylic and metallacyclobutane derivatives
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 11,p. 1131-1135
- https://doi.org/10.1039/dt9770001131
Abstract
Treatment of [{W(η-C5H5)2HLi}4] with CH2 CR–CH2Cl (R = H or Me) gives [W(η-C5H5)2(CH2CRCH2)2]. These react with aqueous HPF6 giving the η-allylic salts [W(η-C5H5)2(η3-CH2CRCH2)][PF6]. The salts [M(η-C5H5)2(η-CH2CHCH2)][PF6](M = MO or W) with Na[BH4] give the metallacyclobutane compounds [M(η-C5H5)2{(CH2)3}]. Treatment of [W(η-C5H5)2(η-CH2CHCH2)][PF6] with allyl-lithium gives the compound [M(η-C5H5)2{CH2CH(CH2CHCH2)CH2}](M = W); the molybdenum analogue (M = MO) is prepared by reaction of [Mo(η-C5H5)2Cl2] with allylmagnesium chloride.Keywords
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