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Michael addition organocatalysis

Tandem intramolecular Michael addition - intramolecular alkylation can lead to cyclopropanes. Matthew J. Gaunt of the University of Cambridge has shown (Angew. Chem. Int. Ed. 2004,43, 2681) that this intramolecular Michael addition also responds to organocatalysis. In this case, the catalyst, a quinine-derived amine, covalently binds to the substrate, then is released at the end of the reaction. [Pg.201]

Michael-aldol reaction as an alternative to the Morita-Baylis-Hillman reaction 14 recent results in conjugate addition of nitroalkanes to electron-poor alkenes 15 asymmetric cyclopropanation of chiral (l-phosphoryl)vinyl sulfoxides 16 synthetic methodology using tertiary phosphines as nucleophilic catalysts in combination with allenoates or 2-alkynoates 17 recent advances in the transition metal-catalysed asymmetric hydrosilylation of ketones, imines, and electrophilic C=C bonds 18 Michael additions catalysed by transition metals and lanthanide species 19 recent progress in asymmetric organocatalysis, including the aldol reaction, Mannich reaction, Michael addition, cycloadditions, allylation, epoxidation, and phase-transfer catalysis 20 and nucleophilic phosphine organocatalysis.21... [Pg.288]

The asymmetric Michael addition is one of the most frequently studied reactions in asymmetric organocatalysis, and impressive levels of conversion and enantiose-... [Pg.269]

The Michael addition is a fundamental process to form carbon-carbon and carbon-heteroatom bonds, with a plethora of asymmetric methods flourishing in the realm of organocatalysis. ... [Pg.144]

During the last years, organocatalytic asymmetric aza-Michael additions have been thoroughly investigated [62, 63] employing different types of organocatalysis (amine, Brpnsted base, Brpnsted acid, PTC, and enzymatic catalysis). [Pg.398]

See other pages where Michael addition organocatalysis is mentioned: [Pg.160]    [Pg.194]    [Pg.356]    [Pg.7]    [Pg.46]    [Pg.82]    [Pg.451]    [Pg.36]    [Pg.245]    [Pg.412]    [Pg.60]    [Pg.8]    [Pg.265]    [Pg.270]    [Pg.270]    [Pg.78]    [Pg.42]    [Pg.317]    [Pg.85]    [Pg.85]    [Pg.256]    [Pg.15]    [Pg.175]    [Pg.712]    [Pg.321]    [Pg.712]    [Pg.144]    [Pg.331]    [Pg.368]    [Pg.380]    [Pg.58]    [Pg.37]    [Pg.67]    [Pg.115]    [Pg.123]    [Pg.16]    [Pg.505]    [Pg.1]    [Pg.27]    [Pg.29]   
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See also in sourсe #XX -- [ Pg.329 ]

See also in sourсe #XX -- [ Pg.247 ]

See also in sourсe #XX -- [ Pg.7 , Pg.36 , Pg.441 , Pg.444 ]

See also in sourсe #XX -- [ Pg.807 , Pg.808 , Pg.809 , Pg.810 , Pg.811 ]

See also in sourсe #XX -- [ Pg.2 , Pg.334 , Pg.401 ]



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Enantioselective Michael addition organocatalysis

Organocatalysis

Organocatalysis addition

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