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Beilstein J. Org. Chem. 2013, 9, 2242–2249, doi:10.3762/bjoc.9.263
Graphical Abstract
Scheme 1: Gold(I)-catalyzed reactions of 1,6-enynes.
Scheme 2: Cyclization of o-(alkynyl)-(3-methylbut-2-enyl)benzenes 1. Previous work and proposed pathways.
Scheme 3: Synthesis of o-(alkynyl)-(3-methylbut-2-enyl)benzenes 1.
Scheme 4: Gold(I)-catalyzed cycloisomerization of 1a.
Scheme 5: Initial experiments and proof of concept.
Scheme 6: Gold(I)-catalyzed hydroxycyclization of enynes 1m,n.
Scheme 7: Gold(I)-catalyzed methoxycyclization of selected 1,6-enynes 1 [45].
Scheme 8: Labelling experiment and proposed mechanism.