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5 article(s) from Wirth, Thomas

Preparation and X-ray structure of 2-iodoxybenzenesulfonic acid (IBS) – a powerful hypervalent iodine(V) oxidant

Irina A. Mironova,
Pavel S. Postnikov,
Rosa Y. Yusubova,
Akira Yoshimura,
Thomas Wirth,
Viktor V. Zhdankin,
Victor N. Nemykin and
Mekhman S. Yusubov

Full Research Paper
Published 20 Jul 2018

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1. Graphical Abstract
2. Scheme 1: Previously reported preparation of IBS (1) [17].
  
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3. Scheme 2: Oxidation of 2-iodobenzenesulfonate 5 by Oxone in water.
  
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4. Figure 1: X-ray structure of an independent crystal unit of IBS 6-K.
  
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5. Figure 2: Simplified representation of structure 6-K. Selected interatomic distances (Å): I(1)=O(1) 1.79; I(1...
  
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6. Scheme 3: Comparison of the oxidation of sodium 2-iodobenzenesulfonate (5) with NaIO₄ and 2-iodobenzenesulfon...
  
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Beilstein J. Org. Chem. 2018, 14, 1854–1858, doi:10.3762/bjoc.14.159

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One-pot synthesis of diaryliodonium salts from arenes and aryl iodides with Oxone–sulfuric acid

Natalia Soldatova,
Pavel Postnikov,
Olga Kukurina,
Viktor V. Zhdankin,
Akira Yoshimura,
Thomas Wirth and
Mekhman S. Yusubov

Full Research Paper
Published 12 Apr 2018

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1. Graphical Abstract
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Beilstein J. Org. Chem. 2018, 14, 849–855, doi:10.3762/bjoc.14.70

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Hypervalent iodine/TEMPO-mediated oxidation in flow systems: a fast and efficient protocol for alcohol oxidation

Nida Ambreen,
Ravi Kumar and
Thomas Wirth

Full Research Paper
Published 17 Jul 2013

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1. Graphical Abstract
2. Figure 1: Flow setup for alcohol oxidations.
  
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3. Scheme 1: Oxidation–condensation sequence in the synthesis of 2,3-dimethylquinoxaline.
  
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Beilstein J. Org. Chem. 2013, 9, 1437–1442, doi:10.3762/bjoc.9.162

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A practical microreactor for electrochemistry in flow

Kevin Watts,
William Gattrell and
Thomas Wirth

Full Research Paper
Published 15 Aug 2011

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1. Graphical Abstract
2. Scheme 1: Electrochemically generated N-acyliminium ions 1 and subsequent reactions.
  
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3. Figure 1: Electrochemical microreactor.
  
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4. Scheme 2: Electrolysis of furan.
  
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5. Scheme 3: Kolbe electrolysis of phenylacetic acids 6 in flow.
  
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6. Scheme 4: Synthesis of diaryliodonium salts 11 in flow.
  
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Beilstein J. Org. Chem. 2011, 7, 1108–1114, doi:10.3762/bjoc.7.127

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Controlling hazardous chemicals in microreactors: Synthesis with iodine azide

Johan C. Brandt and
Thomas Wirth

Full Research Paper
Published 12 Jun 2009

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1. Graphical Abstract
2. Scheme 1: Azide addition to aldehydes and formation of carbamoyl azides.
  
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3. Figure 1: Microreactor setup for the in situ generation and use of iodine azide (IN₃).
  
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4. Scheme 2: Reaction of carbamoyl azide 4a with n-butyllithium.
  
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Beilstein J. Org. Chem. 2009, 5, No. 30, doi:10.3762/bjoc.5.30

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