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Showing 1 to 4 of 4 for “"cyclobutanones"”.
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Use of organocatalysts in stereoselective organic synthesis
… is the use of organocatalysis to synthesize cyclobutanones derivatives. Cyclobutanone derivatives are useful molecular building blocks for the construction of complex molecular structures. Surprisingly, however, the use of organocatalysts to functionalize cyclobutanones is rare, especially …
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Sintesi di molecole organiche enantiomericamente arricchite con l'uso della catalisi organica
… enriched cyclopentanones starting from cyclobutanones and spirocyclopentanones, it is possible to expand the ring through an organocatalysed Michael reaction. This new approach takes advantages of the introduction of the α,β-unsatured aldehyde function on cyclobutanones. Finally, …
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Synthesis and application of pinene-pyridine derivatives in asymmetric catalysis
… oxidation of prochiral 3-substituted cyclobutanones to furnish chiral γ-butyrolactones in up to 81% ee. Complexes of these ligands with iridium can also promote asymmetric hydrogenation of olefins in up to 83% ee. Novel N,N’-dioxides were synthesised from α-pinene and a range of …
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Metal based asymmetric catalysis in Baeyer-Villiger oxidations
… were able to mediate the oxidation of prochiral cyclobutanones to the corresponding butyrolactones in high yields and with modest to good enantioselectivity. It was also demonstrated that Baeyer-Villiger reactions can be performed efficiently in compressed CO2 at room temperature using the …