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ChemInform Abstract: Benzannulation via Sequential Metal-Promoted Higher-Order Cycloaddition-Ramberg-Baecklund Rearrangement.

✍ Scribed by J. H. RIGBY; N. C. WARSHAKOON

Publisher: John Wiley and Sons
Year: 2010
Weight: 36 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199711038

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✦ Synopsis

Benzannulation via Sequential Metal-Promoted Higher-Order Cycloaddition-Ramberg-Baecklund Rearrangement.

-A novel benzannulation sequence is reported based on chromium(0)-promoted (6π + 4π) cycloaddition followed by a Ramberg-Baeckland rearrangement. This methodology offers versatility with regard to potential target structures. The simultaneous production of two rings during the cyclization event leads to the formation of diastereomerically homogeneous adducts.

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