Organonitrogen groups in metal carbonyl complexes. Part IV. Isomeric forms of aza-allyl–allene complexes of molybdenum and tungsten
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 2,p. 153-158
- https://doi.org/10.1039/dt9720000153
Abstract
Reactions between [(π-C5 H5)M(CO)3Cl](M = Mo or W) and (p-tolyl)2C:NLi produce three types of complexes, [(π-C5H5)M(CO)2NC(p-tolyl)2](I), [(π-C5H5)M(CO)2{(p-tolyl)2CNC(p-tolyl)2}](II), and [(π-C5H5)M(CO)2{(p-tolyl)2CNC(p-tolyl)2}(p-tolyl)2CO](III). Two forms of (II; M = W) were isolated in the solid state but a common species was formed in solution. (III) also gave the same solution species together with the free ketone. A mechanism for the formation of the complexes and the biproducts (p-tolyl)2CO, NCO–, and CN– is proposed. All complexes failed to undergo substitution reactions with Ph3P.Keywords
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