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    Photochemistry of 3H-furo[3,4-c]pyrazoles and 3H-thieno[3,4-c] pyrazoles

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    Authors
    Payne, Alan
    Date
    2013
    Type
    Journal Article
    
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    Citation
    Payne, Alan D. 2013. Photochemistry of 3H-furo[3,4-c]pyrazoles and 3H-thieno[3,4-c] pyrazoles. Tetrahedron. 69 (44): pp. 9316-9321.
    Source Title
    Tetrahedron
    DOI
    10.1016/j.tet.2013.08.022
    ISSN
    00404020
    URI
    http://hdl.handle.net/20.500.11937/6704
    Collection
    • Curtin Research Publications
    Abstract

    The first examples of 3H-furo [3,4-c]pyrazoles and 3H-thieno[3,4-c]pyrazoles were prepared in an attempt to isolate examples of cyclopropane-fused thiophenes and furans. Adducts of acetylenic ketones and 2-diazopropane were reacted with 10-camphorsulfonic acid or phosphorus pentasulfide to produce the title compounds. Photolysis of these compounds did not give the cyclopropane-fused products rather an unreported photochemical fragmentation was observed.

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