Danheiser annulation
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Organic chemical reactionTemplate:SHORTDESC:Organic chemical reaction
Not to be confused with Danheiser benzannulation.
The Danheiser annulation or Danheiser TMS-cyclopentene annulation is an organic reaction of an α,β-unsaturated ketone and a trialkylsilylallene (e.g., trimethylsilyl- or triisopropylsilyl-) in the presence of a Lewis Acid to give a trialkylsilylcyclopentene in a regiocontrolled annulation.[1][2][3][4][5][6]
File:DanheiserAnnulation03.png
References
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