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[4 + 2] Cyclization Reactions of Chiral Cβ-Substituted Fischer Alkenyl Carbene Complexes: Efficient Synthesis of Enantiopure Cyclohexenone and Norbornene Derivatives.

✍ Scribed by Jose Barluenga; Aranzazu Gomez; Ana de Prado; Narendra Panday; Javier Santamaria; Miguel Tomas


Publisher
John Wiley and Sons
Year
2007
Weight
35 KB
Volume
38
Category
Article
ISSN
0931-7597

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## Abstract β‐Substituted alkenylcarbene complexes react with methyl ketone lithium enolates to give different carbocyclization products depending on the structure of the lithium enolate, on the metal of the carbene complex, and on the reaction media. Thus, the reactions of aryl and alkyl methyl ke