Olefinic-ester cyclizations using Takai-Utimoto reduced titanium alkylidenes |
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Authors: | Utpal Majumder |
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Affiliation: | Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA |
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Abstract: | The scope and limitations of the Takai-Utimoto reagent to induce the cyclization of olefinic-esters is described. Critical is the steric environment about both the ester and the olefin. Mechanistically, these results support the hypothesis that cyclized product comes from an olefin metathesis, carbonyl-olefination sequence. |
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Keywords: | Metathesis Cyclization Enol ether Polycyclic ether Titanium |
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