Vitamin-Synthesen mit Carben-Komplexen, III [1]. Stereospezifische Synthese von Alkenylcarben-Komplexen des Chroms / Vitamin Syntheses via Carbene Complexes, III [1]. Stereospecific Synthesis of Alkenylcarbene Chromium Complexes
Open Access
- 1 November 1983
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 38 (11) , 1351-1356
- https://doi.org/10.1515/znb-1983-1106
Abstract
Addition of lithioalkenes to hexacarbonylchromium followed by alkylation with trimethyloxonium tetrafluoroborate provides a stereospecific route to pentacarbonyl-[alkenyl(methoxy)carbene]chromium complexes. For the E-butenylcarbene complex an approximately orthogonal dihedral angle between the carbene and the alkene plane is established by X-ray analysis.Keywords
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