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Search results for: michael addition
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... that the sulfonamide 3 mediates the enantioselective Michael addition of aldehydes to nitrostyrene derivatives, ... impressive stereocontrol. Even free radical reactions can be carried out with high diastereoselectivity. ...
... examples Abstract Aldol, Knoevenagel, and Michael reactions of carbonyl compounds are efficiently catalyzed ... 71, 7455-7462. Key Words Aldol Addition, Knoevenagel Condensation, Michael Addition ID ...
... ) a thiourea-based organocatalyst that mediates enantioselective Michael addition, using tuned acceptors such as ... . Hyeung-geun Park and Sang-sup Jew of Seoul National University have found (J. ...
... gave substituted pyrroles in excellent yields. Michael addition of pyrrole with electrophilic olefins was ... in a highly regioselective manner to afford N-alkylpyrroles. see article for more examples Organic ...
... Rauhut-Currier Problem Troy E. Reynolds, Michael S. Binkley and Karl A. ... Organic Chemistry Portal Lewis Acid-Catalyzed Conjugate Additions of Silyloxyallenes: A Selective Solution to ...
... for various carbon-carbon bond-forming reactions such as Michael and aldol reactions in aqueous media. ... . Key Words Nitro Compounds, Michael Addition, Green Chemistry ID: J42-Y2006-2900 ...
... the Cinchona alkaloids mediates the phase transfer Michael addition to 3 with high enantio- ... geometric control, giving 5. On deprotection and reduction, 5 is converted to ...
... an Asymmetric, Catalytic, and Direct Michael Reaction of Nitroalkanes with ?,?-Unsaturated ... ) Abstract A catalytic enantioselective direct conjugate addition of nitroalkanes to ?,?-unsaturated aldehydes ...
... di- and tetrapeptides as organocatalysts for Michael and aldol reactions. The authors have ... Hanessian and co-workers in the organocatalysed conjugate addition of symmetrical 2-nitroalkanes to 2-cycloalkenones. Trans-4 ...
... observed by using benzophenone as substrate. Hetero-Michael reactions of substituted aminofuran-2-one derivatives via ultrasound ... , the sound waves promote a fast addition of metallic acetylides to imides that have ...
