Samarium Triflate as Mild and Efficient Catalyst for Aza-Diels-Alder Reaction: A Facile Synthesis of cis-Fused Pyrano- and Furanoquinolines

Author： Narsaiah A. Venkat   Reddy A. Ramesh   Reddy B. V. Subba   Yadav J. S.  

Publisher： Taylor & Francis Ltd

ISSN： 0039-7911

Source： Synthetic Communications, Vol.40, Iss.12, 2010-01, pp. : 1750-1757

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Abstract

Three-component coupling reactions of aldehydes, amines, and cyclic enol ethers have been carried out in the presence of samarium triflate to afford the corresponding pyrano and furanoquinolines in excellent yields with high endo-selectivity. The reaction conditions are mild and amenable to scale-up.

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