60671-59-2Relevant academic research and scientific papers
Ionic liquid used for secondary battery, synthetic method and application
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Paragraph 0060, (2018/07/30)
The invention provides an ionic liquid used for a secondary battery, a synthetic method and application. The ionic liquid used for the secondary battery is an ionic liquid containing a heteroatom sidechain, and a functional group with positive charges inside the ionic liquid is one of quaternary ammonium salt, imidazolium salt, pyrrole salt and pyridinium salt; Y inside the side chain is S, an alkyl chain with the length of C1 to C3 is arranged between Y and the functional group with the positive charges, and alcohol or benzyl of C1 to C3 is arranged on the side, away from the functional group with the positive charges, of Y; and a negative ion X- is one of Cl-, Br-, I-, BF4- and TFSI- (trifluoromethanesulfonimide). The structure adjustability of the ionic liquid is preferable, the chemical structure of the ionic liquid can be modulated through a substituent group according to requirements, the conductivity of the ionic liquid is more than 1 mS/cm, and the requirement of the novel secondary magnesium battery on the conductivity can be met; sulfydryl is introduced into the ionic liquid by adopting nucleophilic substitution, and the complex capacity of the synthetic ionic liquid containing the heteroatom side chain on magnesium is theoretically moderate, so that the cycle performance of the battery is preferable.
Difluoro- and trifluoro diazoalkanes-complementary approaches in batch and flow and their application in cycloaddition reactions
Hock, Katharina J.,Mertens, Lucas,Metze, Friederike K.,Schmittmann, Clemens,Koenigs, Rene M.
supporting information, p. 905 - 909 (2017/08/14)
Herein we report on applications of fluorinated diazoalkanes in cycloaddition reactions, with the emphasis on studying subtle differences between diverse fluorinated diazo compounds. These differences led to two major synthetic protocols in batch and flow that allow the safe and scalable synthesis of fluoroalkyl-, sulfone-substituted pyrazolines.
Air-Stable NNS (ENENES) Ligands and Their Well-Defined Ruthenium and Iridium Complexes for Molecular Catalysis
Dub, Pavel A.,Scott, Brian L.,Gordon, John C.
supporting information, p. 4464 - 4479 (2015/10/06)
We introduce ENENES, a new family of air-stable and low-cost NNS ligands bearing NH functionalities of the general formula E(CH2)mNH(CH2)nSR, where E is selected from -NC4H8O, -NC4H8, or -N(CH3)2, m and n = 2 and/or 3, and R = Ph, Bn, Me, or SR (part of a thiophenyl fragment). The preparation and characterization of more than 15 examples of well-defined Ru and Ir complexes supported by these ligands that are relevant to bifunctional metal-ligand M/NH molecular catalysis are reported. Reactions of NNS ligands with suitable Ru or Ir precursors afford rich and diverse solid-state and solution chemistries, producing monometallic molecules as well as bimetallics in which the ligand coordinates to the metal via either bidentate (κ2[N,N'] or κ2[N',S]) or tridentate (κ3[N,N',S]) binding modes, depending on the basicity of the sulfur atom, CH2 chain length (m or n parameter), or identity of the transition metal. In the case of Ir, ligands bearing benzyl substituents lead to unprecedented κ4[N,N',S,C]-tetradentate core-structure complexes of the type [IrIIIHCl{κ4(N,N',S,C)-ligand}], resulting from ortho-metalation via C-H oxidative addition. Fourteen of these Ru and Ir complexes have been crystallographically characterized. Air- and moisture-stable complexes of the type trans-[RuIICl2{κ3[N,N',S]-ligand}(L)] (L = PPh3, PCy3, DMSO), and others, effect the selective hydrogenation of methyl trifluoroacetate into the important synthon trifluoroacetaldehyde methyl hemiacetal in basic methanol under relatively mild conditions (35-40 °C, 25 bar H2) with reasonable turnover numbers (i.e., > 1000), whereas the air-stable Ir monohydride complexes [IrIIIHCl{κ4(N,N',S,C)-ligand}] exhibit excellent catalytic activities and high chemoselectivity for the same reaction, reaching turnover numbers of >10 000.
POLYDENTATE LIGANDS AND THEIR COMPLEXES FOR MOLECULAR CATALYSIS
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Page/Page column 62-63, (2016/01/01)
The present invention relates generally to novel achiral and chiral sulfur-, nitrogen- and phosphorus-containing ligands, designated as NNS-type, P(0)NS-type, PNS-type, SNNS-type, SNNP(0)-type, or SNNP-type polydentate ligands and transition metal complexes of these ligands. The catalysts derived from these ligands and transition metal complexes may be used in a wide range of catalytic reactions, including hydrogenation and transfer hydrogenation of unsaturated organic compounds, dehydrogenation of alcohols and boranes, various dehydrogenative couplings, and other catalytic transformations.
Copper(I) complexes of N-centered aliphatic tripodal trithioether ligands - Adjustment of complex geometry by variation of spacer lengths
Blomenkemper, Marc,Schr?der, Henning,Pape, Tania,Hahn, F. Ekkehardt
body text, p. 76 - 80 (2011/03/22)
A series of novel aliphatic tripodal trithioether ligands 4-6 differing in the lengths of the alkyl chains between central nitrogen atom and sulfur donor function has been synthesized. The neutral ligands 4-6 react with copper(I) under formation of the mo
