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- W1979282337 abstract "Die Reaktion äquimolarer Mengen des Carbenium-Iodids [Me2N(Ph)CSMe]I und LiAs(SiMe3)2 · 1.5 THF liefert das thermolabile Arsaalken Me3SiAs=C(Ph)NMe2 (1), das in situ durch Umsetzung mit [(η5-C5Me5)(CO)2FeCl] in das schwarze, kristalline Ferrioarsaalken [(η5-C5Me5)(CO)2FeAs=C(Ph)NMe2] (2) übergeführt wird. Verbindung 2 läßt sich durch Reaktion mit etherischer HBF4 bzw. CF3SO3Me am Arsenatom zu [(η5-C5Me5)(CO)2FeAs(H)C(Ph)NMe2]BF4 (3) protonieren bzw. zu [(η5-C5Me5)(CO)2FeAs(Me)C(Ph)NMe2]SO3CF3 (4) methylieren. Die stabilen Komplexe [(η5-C5Me5)(CO)2FeAs[M(CO)n]C(Ph)NMe2] (5: [M(CO)n] = [Fe(CO)4]; 6: [Cr(CO)5]) wurden durch Reaktion von 2 mit [Fe2(CO)9] bzw. [{(Z)-Cycloocten}Cr(CO)5] gewonnen. Die Verbindungen 2–6 wurden auf elementanalytischem und spektroskopischem Weg (IR, 1H, 13C{1H}-NMR) charakterisiert. Die Molekülstruktur von 2 wurde durch eine Röntgenstrukturanalyse ermittelt. Synthesis, Structure, and Reactivity of the Ferrioarsaalkene [(η5-C5Me5)(CO)2FeAs=C(Ph)NMe2] Reaction of equimolar amounts of the carbenium iodide [Me2N(Ph)CSMe]I and LiAs(SiMe3)2 · 1.5 THF afforded the thermolabile arsaalkene Me3SiAs = C(Ph)NMe2 (1), which in situ was converted into the black crystalline ferrioarsaalkene [(η5-C5Me5)(CO)2FeAs=C(Ph)NMe2)] (2) by treatment with [(η5-C5Me5)(CO)2FeCl]. Compound 2 was protonated by ethereal HBF4 to yield [(η5-C5Me5)(CO)2FeAs(H)C(Ph)NMe2]BF4 (3) and methylated by CF3SO3Me to give [(η5-C5Me5)(CO)2FeAs(Me)C(Ph)NMe2]- SO3CF3 (4). [(η5-C5Me5)(CO)2FeAs[M(CO)n]C(Ph)NMe2] (5: [M(CO)n] = [Fe(CO)4]; 6: [Cr(CO)5]) were isolated from the reaction of 2 with [Fe2(CO)9] or [{(Z)-cyclooctene}Cr(CO)5], respectively. Compounds 2–6 were characterized by means of elemental analyses and spectroscopy (IR, 1H, 13C{1H}-NMR). The molecular structure of 2 was determined by X-ray diffraction analysis." @default.
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- W1979282337 date "2001-05-01" @default.
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- W1979282337 title "Synthese, Struktur und Reaktivität des Ferrioarsaalkens [(η5-C5Me5)(CO)2FeAs=C(Ph)NMe2]" @default.
- W1979282337 doi "https://doi.org/10.1002/1521-3749(200105)627:5<863::aid-zaac863>3.0.co;2-j" @default.
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