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ChemInform Abstract: Asymmetric Spirocyclization: A New Type of Acid-Catalyzed Intramolecular 1,4-Addition to Form Carba-spirocyclic Compounds.

✍ Scribed by Satoshi Yamada; Satoru Karasawa; Youichi Takahashi; Mariko Aso; Hiroshi Suemune

Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199918075

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✦ Synopsis

Asymmetric Spirocyclization: A New Type of Acid-Catalyzed Intramolecular 1,4-Addition to Form Carba-spirocyclic Compounds.

-Treatment of the ketones (Ia) and (Ib) with Lewis acids and 1,2-diols offers a novel spirocyclization to form carba-spirocyclic compounds. In the presence of optically active 1,2-diols asymmetric spirocyclization is possible. -(YA-

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