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Selective Metal‐free HB(C<sub>6</sub>F<sub>5</sub>)<sub>2</sub> Catalyzed Allene Cyclotrimerization: Formation of 1,3,5‐Trimethylenecyclohexane and Its Tris‐hydroboration Product
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Citations
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References
2016
Year
Allene is cyclotrimerized under metal-free conditions with the borane HB(C<sub>6</sub> F<sub>5</sub> )<sub>2</sub> catalyst to selectively give 1,3,5-trimethylenecyclohexane (3 a). Three-fold hydroboration of the 1,3,5-cyclotrimer with Piers' borane gives the all-cis 1,3,5-CH<sub>2</sub> B(C<sub>6</sub> F<sub>5</sub> )<sub>2</sub> substituted cyclohexane product 14.
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