[3+2] Cycloadditions of Metallo Nitrile Ylides and Metallo Nitrile Imines with Metal Carbonyl,Thiocarbonyl, and Isocyanide Complexes: Heterodimetallic Systems with Bridging Heterocycles [1] |
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| Authors: | Friedrich Schoder,Ulrike Plaia,Robert Metzner,Wilfried Sperber,Wolfgang Beck,Wolf Peter Fehlhammer Prof. Dr. |
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| Affiliation: | 1. Institut für Anorganische Chemie, Friedrich‐Alexander‐Universit?t Erlangen‐Nürnberg, Erlangen, Germany;2. Institut für Anorganische und Analytische Chemie, Freie Universit?t Berlin, Berlin, Germany;3. X‐ray structure determinations;4. Department Chemie und Biochemie, Universit?t München, Butenandtstr. 5–13, 81377 München, Germany |
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| Abstract: | The reactions of [Re(CO)6]+, [FeCp(CO)2CS]+ and [FeCp(CNPh)3]+ with the metallo nitrile ylides [M–{C+=N–C–(H)CO2Et}(CO)5]– (M = Cr, W) and the chromio nitrile imine [Cr–{C+=N–N–H}(CO)5]– (generated by mono‐α‐deprotonation of the parent isocyanide complexes) to give neutral 5‐metallated 1,3‐oxazolin‐ ( 1 ), 1,3‐thiazolin‐ ( 2 ), imidazolin‐ ( 3 , 4 ), 1,3,4‐oxdiazolin‐ ( 5 ), 1,3,4‐thiadiazolin‐ ( 6 ) and 1,3,4‐triazolin‐2‐ylidene ( 8 ) chromium and tungsten complexes represent the first all‐organometallic versions of Huisgen’s 1,3‐dipolar cycloadditions. The formation of 6 and 8 is accompanied by partial decomposition to (OC)5Cr–C≡N–FeCpL2 {L = CO ( 7 ), CNPh ( 9 )}. The structures of 4a and 5 have been characterized by X‐ray diffraction. |
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| Keywords: | Nitrile ylides Nitrile imines Dipolarophiles Heterocycles X‐ray diffraction |
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