Cycloisomerization of Conjugated Allenones into Furans under Mild Conditions Catalyzed by Ligandless Au Nanoparticles
Leandros Zorba, Marios Kidonakis, Iakovos Saridakis, Manolis Stratakis*
*Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece, Email: stratakisuoc.gr
L. Zorba, M. Kidonakis, I. Saridakis, M. Stratakis, Org. Lett., 2019, 21, 5552-5555.
DOI: 10.1021/acs.orglett.9b01869 (free Supporting Information)
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Au nanoparticles supported on TiO2 catalyze a cycloisomerization of conjugated allenones into furans under very mild conditions. The reaction rate is accelerated by acetic acid as additive. The heterogenous catalyst can be recycled and reused.
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