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2010•Advanced Synthesis & CatalysisRequires access

A Facile Route to Polysubstituted Naphthalenes and Benzofluorenols via Scandium Triflate‐ and Triflic Acid‐ Catalyzed Benzannulation of 2‐(2‐Alkynylarylidene)‐ 1,3‐Dicarbonyl Compounds

Lu Liu, Wei Lai, Junliang Zhang

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Abstract

Abstract This paper describes an efficient scandium triflate‐ and triflic acid‐catalyzed benzannulation of 2‐(2‐alkynylarylidene)‐1,3‐dicarbonyl compounds to afford polysubstituted naphthalenes and benzo[a]fluorenols. The product selectivity could be tuned by subtle choice of the catalyst. An unprecedented process between alkynes and ketones is also explored.

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What this paper is about

Abstract This paper describes an efficient scandium triflate‐ and triflic acid‐catalyzed benzannulation of 2‐(2‐alkynylarylidene)‐1,3‐dicarbonyl compounds to afford polysubstituted naphthalenes and benzo[a]fluorenols. The product selectivity could be tuned by subtle choice of the catalyst. An unprecedented process between alkynes and ketones is also explored.

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Available abstract

Abstract This paper describes an efficient scandium triflate‐ and triflic acid‐catalyzed benzannulation of 2‐(2‐alkynylarylidene)‐1,3‐dicarbonyl compounds to afford polysubstituted naphthalenes and benzo[a]fluorenols. The product selectivity could be tuned by subtle choice of the catalyst. An unprecedented process between alkynes and ketones is also explored.

Key concepts: Triflic acid, Trifluoromethanesulfonate, Chemistry, Scandium, Catalysis, Organic chemistry, Selectivity, Combinatorial chemistry

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A Facile Route to Polysubstituted Naphthalenes and Benzofluorenols via Scandium Triflate‐ and Triflic Acid‐ Catalyzed Benzannulation of 2‐(2‐Alkynylarylidene)‐ 1,3‐Dicarbonyl Compounds — Research Paper | ScholarLens