2017
DOI: 10.1002/ejic.201700333
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Thioether Iron Complexes [(X‐SMe‐7,8‐C2B9H10)Fe(C6H6)] (X = 9 or 10) as Synthons of Neutral Ferracarborane Fragments

Abstract: Abstract:The demethylation reactions of the cyclohexadienyl complexes [(η-X-SMe 2 -7,8-C 2 B 9 H 10

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Cited by 11 publications
(6 citation statements)
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“…The partial demethylation of the dimethylsulfonium groups in compounds 1-3 was performed using n-BuSK in THF (Figure 1). The similar approach was used earlier for partial demethylation of dimethylsulfonium derivatives of closo-decaborate [25] and closododecaborate [26] anions as well as some metallacarboranes [27,28]…”
Section: Resultsmentioning
confidence: 99%
“…The partial demethylation of the dimethylsulfonium groups in compounds 1-3 was performed using n-BuSK in THF (Figure 1). The similar approach was used earlier for partial demethylation of dimethylsulfonium derivatives of closo-decaborate [25] and closododecaborate [26] anions as well as some metallacarboranes [27,28]…”
Section: Resultsmentioning
confidence: 99%
“…Presumably, the electron-donating and -accepting ability of the cyclo-As 5 is weaker than that of the cyclo-P 5 , so the As-As bonds are only slightly elongated, consistent with the difficulties of reducing Cp*FeAs 5 . 7 The average Fe-P (2.3820 Å) and Fe-As (2.5246 Å) bond lengths of 4 and 5 are comparable with the Fe-P (2.3283( 14)-2.4363(6) Å) 17,18 and Fe-As (2.501(4)-2.532(4) Å) 13 and several salient structural features of 6 can be noted. One of two boraamidinate ligands terminally chelates a molybdenum atom, while the other one unexpectedly bridges a phosphorus atom and the other Mo atom.…”
mentioning
confidence: 65%
“…20 Interestingly, the bond lengths of P1–P2 (2.1534(10) Å) and P1–P5 (2.1697(10) Å) are close to those of the P–P bonds (2.132(4)–2.1745(1) Å) of the planar cyclo -P 5 -bridged dinuclear complexes. 15–17 Compared with the As–As bond lengths (2.317(1)–2.330(1) Å) of 3 , 6 those of 5 (2.3697(5)–2.4627(5) Å) are longer. Although the structural conformations of both cyclo -E 5 in 4 and 5 are very much alike, the five As–As bond lengths are comparable in the range of 2.3697(5) to 2.4627(5) Å.…”
mentioning
confidence: 94%
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“…The observed eff ect may be explained by the affi nity of SMe 2 group to demethylation processes even in the presence of very weak nucleophiles (e.g., halide ions) to give sulfi de derivatives, 33 in which the SMe group can hinder the proceeding of catalytic processes. In particular, we have previously reported 34 that the iron methyl sulfi de complex (9-SMe-7,8-C 2 B 9 H 10 )Fe(C 6 H 6 ) does not undergo arene exchange reactions due to the presence of an intramolecular S−Fe interaction in the intermediate (9-SMe-7,8-C 2 B 9 H 10 )Fe. For further evaluations of substrate specifi city, we selected the most active trimethylammonium complex 6 as the catalyst (see Table 1, entries 3-7).…”
Section: Resultsmentioning
confidence: 99%