A novel platinum-catalyzed transformation of 3-(2-alkyl)phenyl-propynyl acetate into naphthalenyl acetate by tandem [1,3]-OAc shift, [1,5]-sigmatropic hydrogen shift, and 6-π cyclization reactions has been reported (see scheme). The [1,5]-sigmatropic hydrogen shift of propargylic esters is described, as well as the mechanism and the stereospecificity of this tandem process.
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Shu et al. (2008) studied this question.