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2.5.1.5 Method 5: Metal-Vapor Synthesis

DOI: 10.1055/sos-SD-002-00251

Theopold, K. H.; Mommertz, A.; Salisbury, B. A.Science of Synthesis, (20032234.

The co-condensation of metal vapors with trienes in the vapor phase leads to fair yields of mostly pure triene and trienyl complexes. Chromium,[‌27‌] molybdenum,[‌28‌,‌29‌] and tungsten[‌30‌] complexes of cycloheptatriene and cycloheptatrienyl have all been prepared by this method. The formation of the bis(cycloheptatriene) complexes by these reactions is shown in Scheme 6. The mixed triene/trienyl products can be generated through the thermal rearrangement of the bis(cycloheptatriene) complexes. The formation of a molybdenumtrienyl complex by intramolecular hydrogen atom transfer between two cycloheptatriene ligands is shown in Scheme 7.

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