2015). Generally, silver complexes are considered to have similar efﬁciency compared with other late transition metal catalysts and recent studies have shown that silver species exhibited interesting catalytic activities for C–C, C–N, C– O, C–P, C–S bond formation (Liu et al. 2015; Hu et al. 2014; Wang et al. 2014; Ji et al. 2009; Hu et al. 2017). Polysubstituted furans, which is one of the most important heterocyclic compounds, are not only key structural units in natural products and pharmaceuticals (Keay and Dibble 1996; Meegan 1984; Nakanishi 1974) but also useful intermediates in total syntheses (Wong et al. Keywords Silver catalyzed Trisubstituted furans 1999; Lee et al. 2005). Many efforts have been made to Cascade reaction Cyclization Aryl-amine obtain furan derivatives. (Blanc et al. 2016; Gulevich et al. 2013) Transition metal-catalyzed cyclization of 2-(1-alky- nyl)-2-alken-1-ones with nucleophiles is one of the typical approaches to obtain polysubstituted furans since Larock (Yao et al. 2004) and co-works ﬁrst report in 2004. Electronic supplementary material The online version of this Although the cyclization of 2-(1-alkynyl)-2-alken-1-ones article (doi:10.1007/s11696-017-0323-4) contains supplementary with alcohols (Yao et al. 2004, 2005; Patil et al. 2005), material, which is available to authorized users. nitrones
Chemical Papers – Springer Journals
Published: Oct 19, 2017
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