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ChemInform Abstract: Regiochemistry of Intramolecular Photocycloaddition of 1,3-Dioxin-4-ones Tethered Through the Ketal Carbon.

✍ Scribed by C. L. MULLER; J. R. BEVER; M. S. DORDEL; M. M. KITABWALLA; T. M. REINEKE; J. B. SAUSKER; T. R. SEEHAFER; Y. LI; J. P. JASINSKI

Publisher: John Wiley and Sons
Year: 2010
Weight: 31 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199810169

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✦ Synopsis

Regiochemistry of Intramolecular Photocycloaddition of 1,3-Dioxin-4-ones Tethered Through the Ketal Carbon.

-Photolysis of the 1,3-dioxin-4-ones (I) containing a two carbon tethered olefin results in head to head cyclization to (II). The three to four carbon tethered substrates (III) give predominantly head to tail products (IV).

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