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Beilstein J. Org. Chem. 2020, 16, 1124–1134, doi:10.3762/bjoc.16.99
Graphical Abstract
Scheme 1: The synthesis of F-1.
Figure 1: View of the crystal structure of F-1 (F-1a phase), with representation of atoms by thermal ellipsoi...
Figure 2: View of the crystal structure of F-1 (F-1a’ phase), with representation of the atoms via thermal el...
Figure 3: SEM image of F-1.
Figure 4: SEM image of F-1 with an F-1a phase.
Figure 5: TGA-DSC analysis of a sample of F-1. The TGA plot is shown in green, the DSC curve is shown in blue...
Scheme 2: Uncrystallized F-1 or F-1 with an F-1a phase promoted the two- and three-phase reactions of styrene...
Scheme 3: CAHOF F-1-promoted reactions of cyclohexene oxide (5) with alcohols and water.
Scheme 4: F-1-promoted Diels–Alder reaction.
Beilstein J. Org. Chem. 2015, 11, 1614–1623, doi:10.3762/bjoc.11.176
Scheme 1: Synthesis of cyclic and polycarbonates.
Figure 1: Bifunctional aluminium–salen complexes, including those studied in this work.
Scheme 2: Synthesis of salen ligands 8a and 8b.
Scheme 3: The preparation of aluminum complexes 1, 2 and 10.
Scheme 4: Possible formation of a dinuclear complex from 1 by treatment with H2O and Et3N.
Figure 2: MALDI–TOF spectrum of poly(hexene carbonate) prepared using catalyst 2. The peak at 565 Daltons cor...
Figure 3: GPC trace of poly(cyclohexene carbonate) prepared using catalyst 2. The chromatogram was obtained i...
Beilstein J. Org. Chem. 2010, 6, 1043–1055, doi:10.3762/bjoc.6.119
Scheme 1: Synthesis and transformation of nonracemic silyl-protected cyanohydrins.
Figure 1: Highly active metal(salen) complexes for asymmetric cyanohydrin synthesis.
Scheme 2: Synthesis of cyclic carbonates.
Scheme 3: Synthesis of cyanohydrin trimethylsilyl ethers and acetates.
Scheme 4: Equilibrium between bimetallic and monometallic Ti(salen) complexes.
Figure 2: Second-order kinetics plot for the addition of TMSCN to benzaldehyde at 0 °C catalysed by complex 2...
Figure 3: Plot of k2obs against [2], showing that the reactions are first order with respect to the concentratio...
Figure 4: Eyring plot to determine the activation parameters for catalyst 2 in propylene carbonate. The red a...
Figure 5: 51V NMR spectra of complex 2 recorded at 50 °C. a) Spectrum in CDCl3; b) spectrum in CDCl3 with 500...
Figure 6: Structures consistent with the 51V NMR spectra.
Figure 7: Bimetallic aluminium(salen) complex for asymmetric cyanohydrin synthesis.
Figure 8: Rate determining transition states for asymmetric cyanohydrin synthesis: a) when Lewis base catalys...
Figure 9: Hammett correlations with catalyst 2 at 0 °C. Data in red are obtained in dichloromethane [52], whilst ...