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3,157 Newest Publications about the topic rhodium

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Preparation of polynuclear NHC complexes by post-synthetic modification of half-sandwich rhodium and iridium complexes bearing C-azolato ligands

03-Jul-2018 | Francisco Aznarez; Wen-Xi Gao; Yue-Jian Lin; F. Ekkehardt Hahn; Guo-Xin Jin, Dalton Transactions, 2018

A series of bimetallic and trimetallic complexes has been prepared by N-alkylation of mononuclear half-sandwich rhodium and iridium di-NHC complexes featuring bidentate chelate ligands composed of a classical NHC and a C-azolato donor. The shape and the separation between metal centers in the ...

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Rhodium-catalyzed oxidative C–H/C–H cross-coupling of aniline with heteroarene: N-nitroso group enabled mild conditions

03-Jul-2018 | Shuang He; Guangying Tan; Anping Luo; Jingsong You, Chemical Communication, 2018

The development of transition metal-catalyzed oxidative C–H/C–H cross-coupling between two (hetero)arenes to forge aryl-heteroaryl motifs under mild conditions is an appealing yet challenging task. Herein, we disclose a rhodium-catalyzed oxidative C–H/C–H cross-coupling reaction of an ...

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Coordination, Reactivity, and Structural Properties of Electron-Rich Ethoxy- and Dimethylamino-Substituted 1,3-Diketiminate Ligands and Their Complexes

26-Jun-2018 | Michael A. Land; Bright Huo; Katherine Nancy Robertson; Kai Ylijoki; Peter Tak Kwong Lee; Jetsuda Areephong; Dragosl ..., Dalton Transactions, 2018

In this paper we describe the synthesis, characterization, and X-ray crystal structures of two ligands, diethyl-N,N'-bis(p-tolyl)malonimidate and 1,3-bis(dimethylamino)-N,N'-bis(p-tolyl)propanediimidate. Their corresponding rhodium(I) dicarbonyl, dimethylaluminium, and bis-ligated zinc complexes ...

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Rhodium-catalyzed [(3+2)+1] carbocyclizations of alkynylidenecyclopropanes with carbon monoxide: construction of polysubstituted bicyclohexa-2,5-dienones

26-Jun-2018 | Andrew J. Burnie; P. Andrew Evans, Chemical Communication, 2018

A rhodium-catalyzed carbocyclization reaction of alkynylidenecyclopropanes with carbon monoxide to prepare bicyclohexa-2,5-dienones is described. This protocol offers convenient access to doubly conjugated cyclic enones and is tolerant of functionalized alkynes and cyclopropanes. Furthermore, a ...

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Sensors, Vol. 18, Pages 1994: Investigation of Gasochromic Rhodium Complexes Towards Their Reactivity to CO and Integration into an Optical Gas Sensor for Fire Gas Detection

21-Jun-2018 | Pannek, Carolin ; Tarantik, Karina R.; Schmitt, Katrin ; Wöllenstein, Jürgen, Sensors, 2018

Sensors, Vol. 18, Pages 1994: Investigation of Gasochromic Rhodium Complexes Towards Their Reactivity to CO and Integration into an Optical Gas Sensor for Fire Gas Detection Sensors doi: 10.3390/s18071994 Authors: Carolin Pannek Karina R. Tarantik Katrin Schmitt Jürgen ...

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Access to a Pair of Ambiphilic Phosphine-Borane Regioisomers by Rhodium-Catalyzed Hydroboration

12-Jun-2018 | Brian Robert Nichols; Novruz G Ahkmedov; Jeffrey L Petersen; Brian V. Popp, Dalton Transactions, 2018

Lewis basic substrates, such as vinylphosphines and enamines, can be problematic for transition-metal catalysed hydrofunctionalization reactions due to their propensity to ligate and deactivate transition-metal catalysts as well as form direct Lewis adducts with reaction partners. While exploring ...

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Rhodium-Catalysed Regioselective C8-H Amination of Quinoline N-Oxides with Trifluoroacetamide at Room Temperature

12-Jun-2018 | Chang You; Tingting Yuan; Yanzhen Huang; Chao Pi; Yangjie Wu; Xiuling Cui, Organic & Biomolecular Chemistry, 2018

A facile and efficient protocol for rhodium-catalyzed amination of quinoline N-oxides at the C-8 position using simple and commercially available trifluoroacetamide as amino source has been developed, which proceeds with perfect regioselectivity at room temperature and short reaction times. This ...

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Cp*Rh(III) catalyzed ortho-halogenation of N-nitrosoanilines by solvent-controlled regioselective C–H functionalization

05-Jun-2018 | Qiujun Peng; Jian Hu; Jiyou Huo; Hongshun Yuan; Lanting Xu; Xianhua Pan, Organic & Biomolecular Chemistry, 2018

We present a novel, efficient, and regioselective method for the rhodium-catalyzed direct C–H ortho-halogenation of anilines that involves a removable N-nitroso directing group. This method featured mild reaction conditions, wide substrate scope, good functional group tolerance and satisfactory ...

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Light-initiated reversible conversion of macrocyclic endoperoxides derived from half-sandwich rhodium-based metallarectangles

01-Jun-2018 | Wei-Long Shan; Wen-Xi Gao; Yue-Jian Lin; Guo-Xin Jin, Dalton Transactions, 2018

Although reversible photo-dimerization or oxygenation of anthracene and its derivatives is a common reaction, light-initiated reversible conversion of endoperoxide organometallic frameworks has only rarely been addressed. Herein, a series of tetranuclear organometallic macrocycles, ...

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Light-initiated reversible conversion of macrocyclic endoperoxides derived from half-sandwich rhodium-based metallarectangles

01-Jun-2018 | Wei-Long Shan; Wen-Xi Gao; Yue-Jian Lin; Guo-Xin Jin, Dalton Transactions, 2018

Although reversible photo-dimerization or oxygenation of anthracene and its derivatives is a common reaction, light-initiated reversible conversion of endoperoxide organometallic frameworks has only rarely been addressed. Herein, a series of tetranuclear organometallic macrocycles, ...

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