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Chemistry, Volume 2, Issue 1

March 2020 - 12 articles

Cover Story: A hollow cubic coordination cage catalyses the aldol condensation of indane-1,3-dione to the product bindone. We know that neutral organic guest molecules can bind inside the cage cavity in water driven by the hydrophobic effect, and that anions accumulate around the exterior surface of the highly cationic (16+) cage driven by ion-pairing effects. Thus, the cage works by bringing both neutral indane-1,3-dione and its enolate anion (pKa 7) into close contact, in water, using orthogonal interactions. This co-location of electrophile and nucleophile results in catalysed aldol condensation, and highlights a general and possible mechanism for catalysed reactions between neutral/hydrophobic and anionic reaction partners. View this paper.
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Articles (12)

  • Feature Paper
  • Article
  • Open Access
13 Citations
7,246 Views
10 Pages

Appropriate Buffers for Studying the Bioinorganic Chemistry of Silver(I)

  • Lucille Babel,
  • Soledad Bonnet-Gómez and
  • Katharina M. Fromm

22 March 2020

Silver(I) is being largely studied for its antimicrobial properties. In parallel to that growing interest, some researchers are investigating the effect of this ion on eukaryotes and the mechanism of silver resistance of certain bacteria. For these s...

  • Article
  • Open Access
8 Citations
5,512 Views
14 Pages

From Frustrated Packing to Tecton-Driven Porous Molecular Solids

  • Chamara A. Gunawardana,
  • Abhijeet S. Sinha,
  • Eric W. Reinheimer and
  • Christer B. Aakeröy

13 March 2020

Structurally divergent molecules containing bulky substituents tend to produce porous materials via frustrated packing. Two rigid tetrahedral cores, tetraphenylmethane and 1,3,5,7-tetraphenyladamantane, grafted peripherally with four (trimethylsilyl)...

  • Feature Paper
  • Review
  • Open Access
35 Citations
13,022 Views
78 Pages

5 March 2020

Among a plethora of known and established oxidant in organic chemistry, hydrogen peroxide stands in a special position. It is commercially and inexpensively available, highly effective, selective, and more importantly it is compatible with current en...

  • Article
  • Open Access
3 Citations
3,659 Views
8 Pages

4 March 2020

A typical approach of a multicomponent crystal design starts with a retrosynthetic analysis of the target molecule followed by a one-pot reaction of all components. To develop protocols for multicomponent crystal syntheses, controlled stepwise synthe...

  • Feature Paper
  • Review
  • Open Access
14 Citations
3,910 Views
17 Pages

20 February 2020

Consideration of the extensive family of known uranyl ion complexes of polycarboxylate ligands shows that there are quite numerous examples of crystalline solids containing capsular, closed oligomeric species with the potential for use as selective h...

  • Feature Paper
  • Review
  • Open Access
9 Citations
5,078 Views
13 Pages

20 February 2020

Radical reactions have found many applications in carbohydrate chemistry, especially in the construction of carbon–carbon bonds. The formation of carbon–heteroatom bonds has been less intensively studied. This mini-review will summarize t...

  • Feature Paper
  • Article
  • Open Access
6 Citations
4,170 Views
12 Pages

3[Cu2(mand)2(hmt)]–MOF: A Synergetic Effect between Cu(II) and Hexamethylenetetramine in the Henry Reaction

  • Horațiu Szalad,
  • Natalia Candu,
  • Bogdan Cojocaru,
  • Traian D. Păsătoiu,
  • Marius Andruh and
  • Vasile I. Pârvulescu

13 February 2020

∞3[Cu2(mand)2(hmt)]·H2O (where mand is totally deprotonated mandelic acid (racemic mixture) and hmt is hexamethylenetetramine) proved to be a stable metal–organic framework (MOF) structure under thermal activation and catalytic conditions, as confirm...

  • Feature Paper
  • Article
  • Open Access
4 Citations
4,038 Views
17 Pages

Metallosupramolecular Compounds Based on Copper(II/I) Chloride and Two Bis-Tetrazole Organosulfur Ligands

  • Olaya Gómez-Paz,
  • Rosa Carballo,
  • Ana Belén Lago and
  • Ezequiel M. Vázquez-López

4 February 2020

The present work assesses the ability of two flexible bis-tetrazole organosulfur ligands to build up different metallosupramolecular compounds based on the analysis of the different supramolecular interactions. The reaction of copper(II) chloride dih...

  • Feature Paper
  • Article
  • Open Access
17 Citations
5,564 Views
11 Pages

Catalysis of an Aldol Condensation Using a Coordination Cage

  • Cristina Mozaceanu,
  • Christopher G. P. Taylor,
  • Jerico R. Piper,
  • Stephen P. Argent and
  • Michael D. Ward

25 January 2020

The aldol condensation of indane-1,3-dione (ID) to give ‘bindone’ in water is catalysed by an M8L12 cubic coordination cage (Hw). The absolute rate of reaction is slow under weakly acidic conditions (pH 3–4), but in the absence of a...

  • Article
  • Open Access
4 Citations
3,433 Views
11 Pages

Selective Proton-Mediated Transport by Electrogenic K+-Binding Macrocycles

  • Yu-Hao Li,
  • Shao-Ping Zheng,
  • Dawei Wang and
  • Mihail Barboiu

20 January 2020

Synthetic K+-binding macrocycles have potential as therapeutic agents for diseases associated with KcsA K+ channel dysfunction. We recently discovered that artificial self-assembled n-alkyl-benzoureido-15-crown-5-ether form selective ion-channels for...

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Chemistry - ISSN 2624-8549