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Efficient one-pot synthesis of biologically interesting diverse furo[2,3-b]pyran-6-ones by rhodium(II)-catalyzed cascade reactions of diazo compound with ethynyl compounds
Authors:Krishna Bahadur Somai Magar  Yong Rok Lee  Sung Hong Kim
Institution:1. School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea;2. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 702-701, Republic of Korea
Abstract:Rhodium(II)-catalyzed reactions of diazo compound and a variety of ethynyl compounds were carried out. These reactions provide a rapid route for preparing a variety of furo2,3-b]pyran-6-one derivatives in one-pot via cascade reactions of metal carbenoid reaction/ketene formation/2+2]cycloaddition/ring expansion.
Keywords:Cascade reaction  Diazo compound  Ethynyl compounds  Furo[2  3-b]pyran-6-ones  Rhodium(II) catalyst
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