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2.5.2.2.1 Variation 1: Ligand Substitution of Metal Oxychlorides with Dienes

DOI: 10.1055/sos-SD-002-00251

Theopold, K. H.; Mommertz, A.; Salisbury, B. A.Science of Synthesis, (20032238.

Cyclooctadienemolybdenum and tungsten oxydichlorides 11 can be prepared in very high yields by the reaction of the corresponding oxytetrachloride with cycloocta-1,3-diene in refluxing benzene (Scheme 15).[‌49‌] Different cyclooctadiene/metal oxytetrachloride molar ratios (2:1, 3:1, 4:1) have been tried, but in all cases only the bis(cyclooctadiene) complex was formed.

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