• Bulletin of the Korean Chemical Society
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• v.34 no.8
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• pp.2340-2342
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• 2013

A convenient Rh-catalyzed C-H arylation of imidazo[1,2-a]pyridines with a variety of aryl halides or triflates has been reported. This process afforded a range of biaryl compounds in excellent yields and showed high activity and broad scope.

• Bulletin of the Korean Chemical Society
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• v.19 no.1
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• pp.120-122
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• 1998

• Bulletin of the Korean Chemical Society
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• v.23 no.5
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• pp.667-668
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• 2002

• Bulletin of the Korean Chemical Society
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• v.23 no.10
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• pp.1367-1368
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• 2002

• Journal of the Korean Chemical Society
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• v.55 no.6
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• pp.1000-1006
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• 2011

A systematic study of Knoevenagel reaction and Nazarov cyclization was made on variety of less reactive carbonyl compounds such as ${\beta}$-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.