A rapid access to highly substituted phenanthrenyl ketones through gold‐catalyzed cyclization of 1,6‐diyn‐4‐en‐3‐ols with furans has been developed. Gold catalysts are effective to catalyze three cascade processes involving Friedel–Crafts/furan‐yne cyclization/heteroenyne metathesis through CO bond and alkyne activation. This method offers several advantages such as high selectivities and easily accessible starting materials.
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Chen et al. (2011) studied this question.
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