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  • Title: NH4OAc promoted cyclocondensation of 3-(o-allylphenyl)pentane-1,5-diones: synthesis of tetracyclic benzofused 1-azahomoisotwistanes.
    Author: Chang MY, Wu MH, Tai HY.
    Journal: Org Lett; 2012 Aug 03; 14(15):3936-9. PubMed ID: 22817657.
    Abstract:
    A facile two-step synthetic route for preparing the novel tetracyclic skeleton of benzofused 2,6-diaryl-1-azahomoisotwistanes 2 had been developed. The route was carried out by a one-pot tandem cross-coupling reaction of o-allylbenzaldehydes 1 with aryl methyl ketones 3, and NH(4)OAc mediated the cascade cyclocondensation reaction of the resulting 1,5-diketones 4 with the 3-o-allylphenyl group in good yield in two steps.
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