| | 1 | Author
| WolfgangA. Herrmann, Ilona Schweizer | Requires cookie* | | | Title
| Übergangsmetall-Methylen-Komplexe, VI [1] Zur irreversiblen -Methylen/Carbonyl-Isomerie zweikerniger Cobalt-Komplexe mit bifunktionellen Methylen-Liganden Transition Metal Methylene Complexes, VI [1] On the Irreversible //-Methylene/Carbonyl Isomerization of Binuclear Cobalt Complexes with Bifunctional Methylene Ligands  | | | | Abstract
| Ethyl diazoacetate (2 a) and £erZ-butyl diazoacetate (2 b) are converted into the metal stabilized, doubly bridging alkoxycarbonyl carbenes upon photolysis with (r? 5 -C5H5)Co(CO)2 (1) in tetrahydrofurane at —110°C. Although the yields of //-dicarbonyl-/(-ethoxy-carbonylmethylene-bis(?7 5 -cyclopentadienylcobalt) (3 a) and the corresponding ieri-butyl derivative (3b) are low, both compounds attract considerable attention due to an un-expected and hitherto unknown irreversible carbonyl bridge opening process with concomitant //-methylene rearrangement. These isomerizations have been established by IR and 1 H NMR methods to be first order intramolecular processes. | | | |
Reference
| Z. Naturforsch. 33b, 1128—1135 (1978); eingegangen am 6. Juli 1978 | | | |
Published
| 1978 | | | |
Keywords
| /<-Alkoxycarbonylmethylene, Terminal/Bridging Carbonyl Groups, Cobalt, IR, X H NMR | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/33/ZNB-1978-33b-1128.pdf | | | | Identifier
| ZNB-1978-33b-1128 | | | | Volume
| 33 | |
|
