191846-86-3Relevant articles and documents
Synthesis, in-situ membrane preparation, and good gas permselectivity of insoluble poly(substituted acetylene)s loosely cross-linked with short and soft siloxane and silanol linkages
Wang, Jianjun,Aoki, Toshiki,Kaneko, Takashi,Teraguchi, Masahiro
, (2019/12/25)
Insoluble but membrane-formable poly(substituted acetylene)s loosely cross-linked by short and soft Si–O–Si and SiOH---(OH)Si linkages have been synthesized from the corresponding monomers having one or two SiOH groups. These monomers have been polymerized in homogeneous systems to produce homogeneous polymer solutions in toluene. The resulting solutions were cast on polytetrafuluoroethylene sheets followed by evaporation of the solvent to give tough and flexible membranes which were completely insoluble. The membranes showed good oxygen and carbon oxide permselectivity and their plots in PO2 vs PO2/PN2 graph exceeded the 1991 Robeson's upper bound and very close to the 2008 Robeson's upper bound. The excellent selectivity are caused by enhancement of diffusion selectivity by the soft network structure which can create small pores (i.e., ultramicro pores) based on the short linkages. No drop in permeability may be due to the soft Si–O–Si and SiOH---(OH)Si linkages. In addition no change in PO2 and PO2/PN2 by aging was observed.
DBU-Mediated Synthesis of Aryl Acetylenes or 1-Bromoethynylarenes from Aldehydes
Thummala, Yadagiri,Karunakar, Galla V.,Doddi, Venkata Ramana
supporting information, p. 611 - 616 (2019/01/04)
Two well known synthetic organic reactions Ramirez olefination and Corey-fuchs reactions are integrated in one-pot sequential manner for the synthesis of arylacetylenes and 1,3-enynes starting directly from commercially available aldehydes. The bicyclic amidine 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) along with additive NaOH not only exclusively afforded the terminal alkynes directly from the aldehydes, but also enhanced the reaction rate. The dynamic nature of DBU also facilitated the isolation of 1-bromoalkynes intermediate products. Selection of additive from NaOH and H2O served as a switch for the synthesis of terminal alkyne and 1-bromoalkynes, respectively. (Figure presented.).
COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY APPARATUS
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Paragraph 0249, (2018/12/11)
The present invention relates to a compound for an organic optoelectronic device represented by chemical formula 1, an organic optoelectronic device employing the same and a display device apparatus. The details of chemical formula 1 are as defined in the specification.
DESIGN, SYNTHESIS AND CHARACTERIZATION OF METAL ORGANIC FRAMEWORKS
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Paragraph 0125; 0129; 0130, (2017/07/06)
A molecular building block composition can include a metal ion component; and a ligand component including a core including at least one functional group associated with the metal ion component and the core.
A copper (II) (II) composite chlorinating agent and copper-based composite chlorinating agent synthesis of 1-chloro-2-aryl acetylene method
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Paragraph 0092; 0112; 0113, (2016/11/24)
The invention discloses a copper (II) composite chlorinating agent and a method for synthesizing 1-chlorine-2-aryl acetylene based on the copper (II) composite chlorinating agent. The structural formula of the copper (II) composite chlorinating agent is CuCl2.xNaCl.yAl2O3. The chlorinating agent is applicable to chlorination of various substituted aryl acetylene substrates, and is high in universality; the chlorinating agent can directly carry out chlorination reaction on aryl acetylene so as to obtain a 1-chlorine-2-aryl acetylene product; the method is mild in reaction condition, 1-chlorine-2-aryl acetylene can be synthesized with high yield and high selectivity, and the production cost of the 1-chlorine-2-aryl acetylene derivative is greatly lowered.
Synthesis and preliminary characterization of a PPE-type polymer containing substituted fullerenes and transition metal ligation sites
Basinger, Corinne A.,Sullivan, Kaitlin,Siemer, Sarah,Oehrle, Stuart,Walters, Keith A.
, (2015/11/28)
A substituted fullerene was incorporated into a PPE-conjugated polymer repeat unit. This subunit was then polymerized via Sonogashira coupling with other repeat units to create polymeric systems approaching 50 repeat units (based on GPC characterization).
4-Substituted and 4,5-disubstituted 3,6-di(2-pyridyl)pyridazines: Ligands for supramolecular assemblies
Constable, Edwin C.,Housecroft, Catherine E.,Neuburger, Markus,Reymann, Sebastien,Schaffner, Silvia
experimental part, p. 1597 - 1607 (2009/04/11)
The syntheses by inverse electron demand Diels-Alder reactions and characterization of 28 members of a family of 3,6-di(2-pyridyl)pyridazines, functionalized in the 4- or 4,5-positions are reported. Single crystal structural data are presented for four representative derivatives. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
Interchangeability of halogen and ethynyl substituents in the solid state structures of di- and tri-substituted benzenes
Robinson, James M. A.,Kariuki, Benson M.,Harris, Kenneth D. M.,Philp, Douglas
, p. 2459 - 2469 (2007/10/03)
Examination of the solid state structures of bromo- and fluoro-substituted ethynylbenzenes, determined by single crystal X-ray diffraction, has demonstrated that the halogen and ethynyl substituents on these 1,4- and 1,3,5-substituted benzene rings can be interchanged without significant changes in their average solid state structures. Consideration of these structures, together with those of 1,4- and 1,3,5-substituted halogenobenzenes, suggests that, in most cases, shape complementarity may be of equal importance to interactional complementarity when attempting to rationalise the packing of these molecules in the solid state.
