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605 Newest Publications about the topic chlorination

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Transition-metal-free C-H amidation and chlorination: synthesis of N/N[prime or minute]-mono-substituted imidazopyridin-2-ones from N-pyridyl-N-hydroxylamine intermediates

06-Jun-2018 | Katarzyna N. Lee; Dominique N. Spiegowski; Johnny W. Lee; Sanghyun Lim; Fuhua Zhao; Ming-Yu Ngai, Chemical Communication, 2018

Non-symmetric 1,3-substituted imidazopyridin-2-ones are a common structural scaffold found among many biologically active molecules. Herein we report an efficient, mild, and transition-metal free C–H amidation strategy to access such a pyrido-fused cyclic urea framework in good yields and with a ...

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A new method for alkaline-earth monouranates preparation by solid state and chlorination reactions

03-Jun-2018 | Author(s): Federico J. Pomiro, Cristina N. Guibaldo, Raúl D. Quinteros, Ana E. Bohé, Georgina De Micco, Inorganic Chemistry Communications, 2018

Publication date: July 2018 Source:Inorganic Chemistry Communications, Volume 93 Author(s): Federico J. Pomiro, Cristina N. Guibaldo, Raúl D. Quinteros, Ana E. Bohé, Georgina De Micco Alkaline-earth monouranates with the formula MUO4 (M = Ca, Sr, Ba) were synthesized using a novel ...

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Ligand-promoted ruthenium-catalyzed meta C–H chlorination of arenes using N-chloro-2,10-camphorsultam

01-Jun-2018 | Zhoulong Fan; Heng Lu; Zhen Cheng; Ao Zhang, Chemical Communication, 2018

A practical meta C–H chlorination protocol is established via a Ru(0)-catalyzed ortho-metalation strategy. The use of N-chloro-2,10-camphorsultam as a new chlorinating agent is crucial for the success of the current reaction and an N-heterocyclic carbene (NHC) ligand could significantly enhance ...

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Ligand-promoted ruthenium-catalyzed meta C–H chlorination of arenes using N-chloro-2,10-camphorsultam

01-Jun-2018 | Zhoulong Fan; Heng Lu; Zhen Cheng; Ao Zhang, Chemical Communication, 2018

A practical meta C–H chlorination protocol is established via a Ru(0)-catalyzed ortho-metalation strategy. The use of N-chloro-2,10-camphorsultam as a new chlorinating agent is crucial for the success of the current reaction and an N-heterocyclic carbene (NHC) ligand could significantly enhance ...

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ortho-Chlorination of phenoxy 1,2-dioxetane yields superior chemiluminescent probes for in vitro and in vivo imaging

30-May-2018 | Tal Eilon-Shaffer; Michal Roth-Konforti; Anat Eldar-Boock; Ronit Satchi-Fainaro; Doron Shabat, Organic & Biomolecular Chemistry, 2018

A recent methodology, developed by our group, has enabled a dramatic improvement in the emissive nature of the excited species, formed during the chemiexcitation of dioxetanes under physiological conditions. This approach has resulted in the discovery of distinct phenoxy-dioxetane luminophores ...

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Structural behaviour of copper chloride catalysts during the chlorination of CO to phosgene

29-May-2018 | Shaoliang Guan; Philip Rosser Davies; Emma K Gibson; David Lennon; Giovanni E. Rossi; John Winfield; June Callison; ..., Faraday Discussions, 2018

The interaction of CO with an attapulgite-supported Cu(II)Cl2 catalyst has been examined in a micro-reactor arrangement. CO exposure to the dried, as-received catalyst at elevated temperatures leads to the formation of CO2 as the only identifiable product. However, phosgene production can be ...

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Clean chlorination of silica surfaces by a single-site substitution approach

27-May-2018 | Niladri Maity; Samir Barman; Edy Abou-Hamad; Valerio D'Elia; Jean-Marie Basset, Dalton Transactions, 2018

A chlorination method for the selective substitution of well-defined isolated silanol groups of the silica surface has been developed using the catalytic Appel reaction. Spectroscopic analysis, complemented by elemental microanalysis studies, reveals that a quantitative chlorination could be ...

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Site-selectivity in the halogenation of titanium-functionalized polyoxovanadate–alkoxide clusters

25-May-2018 | L. E. VanGelder; P. L. Forrestel; W. W. Brennessel; E. M. Matson, Chemical Communication, 2018

Herein, we report the synthesis and characterization of a dititanium-functionalized polyoxovanadate–alkoxide cluster. The incorporation of a second heterometal within the cluster core results in striking differences in reactivity of the multimetallic complex. Chlorination of the metal oxide ...

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Revisit of 1 Chloro-1,2-benziodoxol-3-one: Efficient ortho-Chlorination of aryls under aqueous conditions.

25-May-2018 | Botla Vinayak; Pardhi Vishal Ravindrakumar; Daggupati V. Ramana; Malapaka Chandrasekharam, New Journal of Chemistry, 2018

The application of 1-chloro-1,2-benziodoxol-3-one as a powerful chlorinating agent as well as oxidant for aniline derivatives is explored. The amide directing group assisted radical mediated ortho-selective chlorination proceeds in the absence of a radical initiator. Various electronically ...

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Versatility of chlorination-promoted skeletal transformation pathways in C76 fullerene

25-May-2018 | S. M. Sudarkova; O. N. Mazaleva; R. A. Konoplev-Esgenburg; S. I. Troyanov; I. N. Ioffe, Dalton Transactions, 2018

We present the synthesis and crystal structure of a new chlorinated non-IPR isomer of C76 fullerene, 18387C76Cl30. The new chloride is formed from IPR-D2-C76via a sequence of chlorination-promoted Stone–Wales rearrangements concurrently with the previously known non-IPR compound 18917C76Cl24. A ...

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