Oxygen atom transfer in dialkyldioxo-molybdenum or -tungsten complexes. A case of dialkyldioxo-alkylalkylideneoxohydroxometal tautomerism
Abstract
Reaction of bipyridylbis-2-(methylbenzyl)dioxomolybdenum or the tungsten analogue in solution, at room temperature, yields 2-methylbenzaldehyde and 2-methylbenzyl alcohol as the main products; their formation is rationalized in terms of a pseudo ‘keto–enol’ tautomeric equilibrium.