Zur reaktion von metallkoordiniertem kohlenmonoxid mit yliden: XIV. Eisenacyl-phosphor-ylide mit elektronenreicher organometallgruppierung |
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Authors: | Andrea Stasunik Wolfgang Malisch |
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Affiliation: | Institut für Anorganische Chemie der Universität Würzburg, Am Hubland, D-8700 Würzburg Bundesrepublik Deutschland |
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Abstract: | Treatment of [C5Me5(CO)3Fe]BF4 (I) with the phosphines Me3P and Et3P under thermal or photochemical conditions yields the novel iron salts [C5Me5-(CO)2(R3P)Fe]BF4 (R = Me (IIa), R = Et (IIb)) and [C5Me5(CO)(Me3P)2Fe]BF4 (IIc). The reaction of I and IIa with two mol of the ylide Me3PCH2 leads to the formation of the ironacyl-ylides C5Me5(CO)(L)FeC(O)CHPMe3 (L = CO (IVa), Me3P (IVb)). IVa selectively reacts at the “ylidic” carbon with the electrophilic reagents MeI, MeOSO2F, Me3SiOSO2CF3 to give the ironacyl-phosphonium salts [C5Me5(CO)2FeC(O)CH(R)PMe3] X (VaVc), while IVb is partially converted to [C5Me5(CO)2FeC(O)CH2PMe3]BF4 (IIIa) is obtained together with [C5Me5-(CO)2Fe]2 from I and IVa. |
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