3 article(s) from North, Michael
- Full Research Paper
- Published 26 May 2020
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Scheme 1: The synthesis of F-1.
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Figure 1: View of the crystal structure of F-1 (F-1a phase), with representation of atoms by thermal ellipsoi...
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Figure 2: View of the crystal structure of F-1 (F-1a’ phase), with representation of the atoms via thermal el...
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Figure 3: SEM image of F-1.
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Figure 4: SEM image of F-1 with an F-1a phase.
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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...
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Scheme 2: Uncrystallized F-1 or F-1 with an F-1a phase promoted the two- and three-phase reactions of styrene...
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Scheme 3: CAHOF F-1-promoted reactions of cyclohexene oxide (5) with alcohols and water.
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Scheme 4: F-1-promoted Diels–Alder reaction.
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- Full Research Paper
- Published 11 Sep 2015
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Scheme 1: Synthesis of cyclic and polycarbonates.
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Figure 1: Bifunctional aluminium–salen complexes, including those studied in this work.
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Scheme 2: Synthesis of salen ligands 8a and 8b.
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Scheme 3: The preparation of aluminum complexes 1, 2 and 10.
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Scheme 4: Possible formation of a dinuclear complex from 1 by treatment with H2O and Et3N.
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Figure 2: MALDI–TOF spectrum of poly(hexene carbonate) prepared using catalyst 2. The peak at 565 Daltons cor...
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Figure 3: GPC trace of poly(cyclohexene carbonate) prepared using catalyst 2. The chromatogram was obtained i...
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Kinetics and mechanism of vanadium catalysed asymmetric cyanohydrin synthesis in propylene carbonate
- Full Research Paper
- Published 03 Nov 2010
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Scheme 1: Synthesis and transformation of nonracemic silyl-protected cyanohydrins.
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Figure 1: Highly active metal(salen) complexes for asymmetric cyanohydrin synthesis.
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Scheme 2: Synthesis of cyclic carbonates.
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Scheme 3: Synthesis of cyanohydrin trimethylsilyl ethers and acetates.
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Scheme 4: Equilibrium between bimetallic and monometallic Ti(salen) complexes.
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Figure 2: Second-order kinetics plot for the addition of TMSCN to benzaldehyde at 0 °C catalysed by complex 2...
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Figure 3: Plot of k2obs against [2], showing that the reactions are first order with respect to the concentratio...
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Figure 4: Eyring plot to determine the activation parameters for catalyst 2 in propylene carbonate. The red a...
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Figure 5: 51V NMR spectra of complex 2 recorded at 50 °C. a) Spectrum in CDCl3; b) spectrum in CDCl3 with 500...
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Figure 6: Structures consistent with the 51V NMR spectra.
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Figure 7: Bimetallic aluminium(salen) complex for asymmetric cyanohydrin synthesis.
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Figure 8: Rate determining transition states for asymmetric cyanohydrin synthesis: a) when Lewis base catalys...
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Figure 9: Hammett correlations with catalyst 2 at 0 °C. Data in red are obtained in dichloromethane [52], whilst ...
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