Cycloaddition and cycloreversion reactions of a monomeric Ti(IV) oxo complex with terminal and internal alkynes. A reversible oxametallacyclobutene/hydroxoacetylide interconversion
Journal Article
·
· Journal of the American Chemical Society
- Lawrence Berkeley Lab., CA (United States)
The synthesis and structure of Cp{sup *}{sub 2}Ti(O)(pry) (Cp{sup *}={eta}{sup 5}-C{sub 5}Me{sub 5}; pyr=pyridine) (1) were described recently. We report here on the [2 + 2] cycloaddition of 1 with terminal alkynes and the 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. 17 refs., 1 fig.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 62290
- Journal Information:
- Journal of the American Chemical Society, Vol. 117, Issue 19; Other Information: PBD: 17 May 1995
- Country of Publication:
- United States
- Language:
- English
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