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    Organic Chemistry Help

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    # 1 i am sure that it makes a 5 membered ring but i'm not sure how it attaches.
    #2 this is the second part of a synthesis and I think that the phn-nph will attatch to the carbonyl's and form a ring but i'm not sure.
    #3 I know how to do mech 1 but i'm not sure how to do a second one, please show step by step how it is done.

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    Solution Summary

    This solution provides help for an organic chemistry problem.