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Diels-Alder reactions catalysed

Scheme 5.42 Intramolecular [4+2] Diels-Alder reaction catalysed by two different NHC-Rh catalysts... Scheme 5.42 Intramolecular [4+2] Diels-Alder reaction catalysed by two different NHC-Rh catalysts...
TABLE 14. Some Diels-Alder reactions catalysed by the biphenylenediol catalyst (cat) 9175 Reaction Conditions Product formation (%)... [Pg.1061]

Formyl hydrogen bonds, in which die C—H bond of a formyl group acts as an acceptor (typically to oxygen), have recently been identified in Lewis acid-catalysed reactions of aldehydes.523 An X-ray crystal structure of such a complex has been reported.5213 This type of hydrogen bond is now suggested as a likely organizing stereochemical element in a variety of enantioselective aldol, allylation, and Diels-Alder reactions catalysed by Lewis acids reported in the literature.520 Further examples of such reactions are also discussed.53... [Pg.10]

Fig. 6.30 Diels-Alder reaction, catalysed by a — non-dendritic - bis(oxazoline)-metal complex (according to Chow et al.)... Fig. 6.30 Diels-Alder reaction, catalysed by a — non-dendritic - bis(oxazoline)-metal complex (according to Chow et al.)...
Simple Mukaiyama aldol and Diels-Alder reactions catalysed by cationic silicon Lewis acids show significant counterion effects.142... [Pg.16]

Adams, J. M., S. Dyer, K. Martin, W. A. Matear, and R. W. McCabe. 1994. Diels-Alder reactions catalysed by cation-exchanged clay minerals. J. Chem. Soc. Perkin Tram. 1 761-765. [Pg.160]

Diels-Alder reactions catalysed by metal complexes C2-Symmetric Lewis acid catalysis... [Pg.567]

Carbohydrate-derived Auxiliaries. - Reaction of the fructose-derived acrylate 200 with cyclopentadiene in the presence of Et2AlCl, followed by disconnection of the auxiliary by reduction, gave the cycloadduct 201 in high ee. Use of the same auxiliary in an intramolecular Diels-Alder reaction catalysed by Et2AlCl gave, after reductive disconnection with LiAlH4, the bicycle 2027 It has... [Pg.357]

Scheme 24.2 Asymmetric hetero-Diels-Alder reaction catalysed by TADDOLs 2. Scheme 24.2 Asymmetric hetero-Diels-Alder reaction catalysed by TADDOLs 2.
Scheme 19.47 Asymmetric hetero-Diels-Alder reactions catalysed by BINOL-AlMe. Scheme 19.47 Asymmetric hetero-Diels-Alder reactions catalysed by BINOL-AlMe.
Scheme 7.36 Domino intramolecular hydrosiloxylation-Diels-Alder reaction catalysed by chiral phosphoramide catalysis and gold catalysis. Scheme 7.36 Domino intramolecular hydrosiloxylation-Diels-Alder reaction catalysed by chiral phosphoramide catalysis and gold catalysis.
Scheme 7.69 Tandem oxidation-Diels-Alder reaction catalysed by copper catalysis... Scheme 7.69 Tandem oxidation-Diels-Alder reaction catalysed by copper catalysis...
See other pages where Diels-Alder reactions catalysed is mentioned: [Pg.455]    [Pg.455]    [Pg.37]    [Pg.455]    [Pg.55]   


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