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Air stable binuclear alkoxytungsten complexes as catalyst precursors for olefin metathesis


, : Air stable binuclear alkoxytungsten complexes as catalyst precursors for olefin metathesis. Canadian Journal of Chemistry 66(10): 2483-2486

The use of the air-stable complexes tetrachlorobis(.mu.-methoxy)bis(methanolo)dimethoxyditungsten (1) and tetrachlorobis(.mu.-ethoxy)tetraethoxyditungsten (2) as catalyst precursors for the metathesis of 1-octene is described. Using mild conditions, the latter was converted to 7-tetradecene (4) in fair yields when diethylaluminum chloride (3) was used as a cocatalyst. Product stereoselectivity was 4/1 in favor of the trans isomer. The reaction was also shown to be efficient for the production of 2-nonenes.

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