The gold(I)-catalyzed dehydrogenative cycloisomerization of cyclopropane-tethered 1,5-enynes proceeded smoothly to give multisubstituted benzene derivatives in good to excellent yields. Synthetically important benzocyclobutenes can be produced in high yields in the presence of a gold(I) catalyst and DDQ. Furthermore, this reaction also works very well for non-cyclopropane tethered 1,5-enynes.
G. Chen, W. Fang, Y. Wei, X. Tang and M. Shi, Chem. Commun., 2016, 52, 10799 DOI: 10.1039/C6CC05423D
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