Journal of the American Chemical Society p. 5393 - 5394 (1995)
Update date:2022-08-04
Topics:
Polse
Andersen
Bergman
The synthesis and structure of Cp*2Ti(O)(pyr) (Cp* = η5-C5Me5; pyr = pyridine) (1) were described recently. We report here on the [2 + 2] cycloaddition of 1 with terminal alkynes and yhe novel rearrangement of the resulting oxametallacyclobutenes to hydroxoacetylide complexes. in at least one case the arrangement is reversible, and we have obtained information on its mechanism. We have carried out experiments designed to investigate the mechanism of the oxametallacycle-to-hydroxoacetylide rearrangement.
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