823226-92-2Relevant articles and documents
On the Gold-Catalyzed Generation of Vinyl Cations from 1,5-Diynes
Wurm, Thomas,Bucher, Janina,Duckworth, Sarah B.,Rudolph, Matthias,Rominger, Frank,Hashmi, A. Stephen K.
supporting information, p. 3364 - 3368 (2017/03/17)
Conjugated 1,5-diynes bearing two aromatic units at the alkyne termini were converted in the presence of a gold catalyst. Under mild conditions, aryl-substituted dibenzopentalenes were generated. Calculations predict that aurated vinyl cations are key intermediates of the reaction. A bidirectional approach provided selective access to the angular annulated product in high yield, which was explained by calculations.