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3 article(s) from van Hest, Jan C M

Nanoreactors for green catalysis

M. Teresa De Martino,
Loai K. E. A. Abdelmohsen,
Floris P. J. T. Rutjes and
Jan C. M. van Hest

Beilstein J. Org. Chem. 2018, 14, 716–733, doi:10.3762/bjoc.14.61

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Graphical Abstract

Figure 1: Assembly of catalyst-functionalized amphiphilic block copolymers into polymer micelles and vesicles...

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Scheme 1: C–N bond formation under micellar catalyst conditions, no organic solvent involved. Adapted from re...

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Scheme 2: Suzuki−Miyaura couplings with, or without, ppm Pd. Conditions: ArI 0.5 mmol 3a, Ar’B(OH)₂ (0.75–1.0...

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Figure 3: 3a) Schematic representation of a Pickering emulsion with the enzyme in the water phase (i), or wit...

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Scheme 3: Cascade reaction with GOx and Myo. Adapted from reference [82].

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Figure 4: Cross-linked polymersomes with Cu(OTf)₂ catalyst. Reprinted with permission from [15].

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Figure 5: Schematic representation of enzymatic polymerization in polymersomes. (A) CALB in the aqueous compa...

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Figure 6: Representation of DSN-G₀. Reprinted with permission from [100].

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Figure 7: The multivalent esterase dendrimer 5 catalyzes the hydrolysis of 8-acyloxypyrene 1,3,6-trisulfonate...

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Figure 8: Conversion of 4-NP in five successive cycles of reduction, catalyzed by Au@citrate, Au@PEG and Au@P...

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Review

Published 29 Mar 2018

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Ethyl diazoacetate synthesis in flow

Mariëlle M. E. Delville,
Jan C. M. van Hest and
Floris P. J. T. Rutjes

Beilstein J. Org. Chem. 2013, 9, 1813–1818, doi:10.3762/bjoc.9.211

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Scheme 1: Synthesis of ethyl diazoacetate (1).

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Figure 1: Schematic representation of the microreactor setup.

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Figure 2: Univariate optimization using 30 s, 15 °C and 1.5 equiv NaNO₂ as standard.

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Figure 3: 2D-Contour plots of the multivariate optimization.

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Figure 4: Phase separation using a Flow-Liquid–Liquid-Extraction module (FLLEX) directly coupled to the micro...

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Full Research Paper

Published 05 Sep 2013

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Aqueous reductive amination using a dendritic metal catalyst in a dialysis bag

Jorgen S. Willemsen,
Jan C. M. van Hest and
Floris P. J. T. Rutjes

Beilstein J. Org. Chem. 2013, 9, 960–965, doi:10.3762/bjoc.9.110

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Figure 1: General approach for the use of dendritic catalysts in a dialysis bag.

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Scheme 1: Synthesis of water-soluble iridium catalyst 3.

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Scheme 2: Synthesis of the desymmetrized bipyridine 8.

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Scheme 3: Attachment of the adapted ligand 8 to the dendrimers via a multi-isocyanate coupling, followed by i...

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Scheme 4: Catalytic reductive amination of valine (18) via unfavorable equilibrium reactions in water.

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Figure 2: Formation of 19 catalyzed by the three iridium catalysts.

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Figure 3: Reaction setup to perform compartmentalized catalysis.

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Figure 4: G3 catalyst 16 activity in dialysis device.

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Figure 5: G4 catalyst 17 activity in subsequent runs.

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Supp Info

Full Research Paper

Published 17 May 2013

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