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KMID : 1059520110550061000
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Journal of the Korean Chemical Society
2011 Volume.55 No. 6 p.1000 ~ p.1006
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A Systematic Study on Knoevenagel Reaction and Nazarov Cyclization of Less Reactive Carbonyl Compounds Using Rare Earth Triflates and Its Applications
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A. Ilangovan
S. Muralidharan
S. Maruthamuthu
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Abstract
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A systematic study of Knoevenagel reaction and Nazarov cyclization was made on variety of less reactive carbonyl compounds such as β-ketoesters, 1,3-diketones and cyclic active methylene compounds using Yb(OTf)3 as the catalyst. Recycling study confirms reusability of the catalyst without much loss of activity.
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KEYWORD
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Knoevenagel Reaction, Nazarov cyclization, Yetterbium triflate, 1, 3-diketones, Ethyl acetoacetate
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