Self-assisted tandem Michael-aldol reactions of alpha,beta-unsaturated ketones with aldehydes |
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| Authors: | Kataoka T Kinoshita S Kinoshita H Fujita M Iwamura T Watanabe S |
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| Institution: | Gifu Pharmaceutical University, 6-1 Mitahora-higashi 5-chome, Gifu 502-8585, Japan. kataoka@gifu-pu.ac.jp |
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| Abstract: | The tandem Michael-aldol reaction of 1-2-(methylsulfanyl)-phenyl]prop-2-en-1-one (1) or the seleno congener 4 with p-nitrobenzaldehyde in the presence of BF3.Et2O gave the Baylis-Hillman adduct 2 or 5 and onium salt 3 or 6, respectively, and selenochromanone 7 from 4. |
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