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ChemInform Abstract: Seven-Membered Rings by Cyclization at Transition Metals: [4 + 3], [3 + 2 + 2]. [5 + 2]

✍ Scribed by Holger Butenschoen

Book ID: 102021117
Publisher: John Wiley and Sons
Year: 2008
Weight: 23 KB
Volume: 39
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200841240

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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