88374-55-4Relevant articles and documents
Corresponding amine nitrile and method of manufacturing thereof
-
Paragraph 0150; 0151; 0152; 0157, (2018/05/07)
The invention relates to a manufacturing method of nitrile. Compared with the prior art, the manufacturing method has the characteristics of significantly reduced using amount of an ammonia source, low environmental pressure, low energy consumption, low production cost, high purity and yield of a nitrile product and the like, and nitrile with a more complex structure can be obtained. The invention also relates to a method for manufacturing corresponding amine from nitrile.
Amphiphile self-assembly dynamics at the solution-solid interface reveal asymmetry in head/tail desorption
Castillo, Henry D.,Espinosa-Duran, John M.,Dobscha, James R.,Ashley, Daniel C.,Debnath, Sibali,Hirsch, Brandon E.,Schrecke, Samantha R.,Baik, Mu-Hyun,Ortoleva, Peter J.,Raghavachari, Krishnan,Flood, Amar H.,Tait, Steven L.
supporting information, p. 10076 - 10079 (2018/09/13)
Amphiphilic alkoxybenzonitriles (ABNs) of varying chain length are studied at the solution/graphite interface to analyze dynamics of assembly. Competitive self-assembly between ABNs and alkanoic acid solvent is shown by scanning tunneling microscopy (STM)
Nonsymmetrical cholesterol dimers constituting regioisomeric oxadiazole and thiadiazole cores: an investigation of the structure-property correlation
Pradhan, Balaram,Chakraborty, Nirmalangshu,Gupta, Ravindra Kumar,Shanker,Achalkumar, Ammathnadu S.
supporting information, p. 879 - 888 (2017/02/05)
Three series of chiral nonsymmetrical dimers were prepared by connecting promesogenic cholesterol to a bent structure derived from a substituted 1,3,4-oxadiazole or 1,2,4-oxadiazole or 1,3,4-thiadiazole moiety. These two mesogenic segments are interconnected through spacers of varying lengths and parity. The structures of the bent achiral unit were systematically varied with different central heterocyclic cores to understand the influence of bent angles on the thermal and gelation behavior. The bent angle of the achiral unit, which is determined by the heterocyclic core, has a major role in the stabilization of frustrated phases. Dimers based on the 1,3,4-oxadiazole unit with a more bent structure stabilized frustrated phases like blue phases and twist grain boundary phases. The bent system with a wider bent angle preferred to stabilize chiral nematic and smectic A phases. It is interesting to note that an increased bent structure reduced the mesophase stability as in the case of dimers based on the 1,3,4-oxadiazole unit, where many compounds exhibited monotropic phases. In the case of dimers with a wider bent angle, enantiotropic mesomorphism was observed. All the compounds showed blue light emission in the solution. Among these chiral dimers, only the compounds based on the 1,3,4-oxadiazole unit showed the gelation ability, which emphasizes how small structural changes like bent angle, dipole moment and the type of heteroatom in the heterocyclic unit affect the macroscopic self-assembly.
A facile synthesis of novel near-infrared pyrrolopyrrole aza-BODIPY luminogens with aggregation-enhanced emission characteristics
Li, Lanqing,Wang, Lingyun,Tang, Hao,Cao, Derong
supporting information, p. 8352 - 8355 (2017/07/26)
Here we report the facile synthesis of two triphenylethylene-modified pyrrolopyrrole aza-BODIPY dyes with an aggregation-enhanced emission feature. NIR-emitting nanoparticles with remarkable photostability properties and applications in bioimaging were ge
Imidazolines containing single-, twin- and triple-tailed hydrophobes and hydrophilic pendants (CH2CH2NH)nH as inhibitors of mild steel corrosion in CO2-0.5 M NaCl
Mazumder, Mohammad A. J.,Nazal, Mazen K.,Faiz, Mohamed,Ali, Shaikh A.
, p. 12348 - 12362 (2016/02/12)
Inhibition of mild steel corrosion in CO2-0.5 M NaCl (40 °C, 1 atm; 120 °C, 10 bar) by a new series of imidazolines having single-, twin- and triple-tailed phenyl substituents at C(2) and N(1) pendants of CH2CH2NH2 and (CH2CH2NH)2CH2CH2NH2 have been examined. Imidazolines containing twin-tailed (3,5-dioctyloxyphenyl) hydrophobes outperformed their single- and triple-tailed counterparts as well as two commercial imidazolines. The triamine pendant imparted better inhibition at higher temperature and pressure. The XPS study confirmed the presence of an imidazoline film covering the metal surface. The imidazolines prefer to be adsorbed on the metal surface rather than micellization.
RESIN COMPOSITION AND MOLDED ARTICLE
-
Paragraph 0272, (2016/10/11)
The invention contains a resin and a near infrared fluorescent material which is one type or two or more types of compounds selected from General Formulas (I1) to (I4) and has a maximum fluorescence wavelength of 650 nm or longer. In Formulas, Ra and Rb, Rc and Rd, Rh and Ri, and Rj and Rk form rings together with the nitrogen atom to which Ra, Rc, Rh, and Rj are bonded; Re and Rf represent a halogen atom or an oxygen atom; each of Rl, Rm, Rn, and Ro independently represents a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group; Rg, Rr, and Rs represent a hydrogen atom or an electron withdrawing group; and each of Rp and Rq independently represents a hydrogen atom, a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group.
Synthesis of new family of thiazoline and thiazole esters and investigation of their thermal properties
Schneider, Juliana M. F. M.,Sales, Eric S.,Livotto, Paolo R.,Schneider, Paulo H.,Merlo, Aloir A.
, p. 1493 - 1503 (2014/09/29)
A new family of thiazoline and thiazole esters has been synthesized and their thermal properties are presented and discussed. Thiazoline esters were obtained by cyclization reaction from 4-substituted benzenenitrile and amino acid L-cysteine followed by esterification reaction with selected alcohols and phenol. Subsequent oxidation step to transform thiazoline esters into thiazole esters was applied mediated by BrCCl3/DBU. The final thiazoline and thiazole esters are composed by terminal flexible hydrogenated alkyl chain from one side and to the other side by terminal segments of flexible alkyl chains (hydrogenated chain), (perfluoralkyl)alkyl chains (semifluorinated alkane) p-alkoxyphenyl chains. Some liquid crystals compounds for thiazoline and thiazole esters showed to be relevant. One of the thiazoline esters display a monotropic smectic A (SmA) mesophase while some thiazole esters show stable SmA mesophase. As expected semifluorinated alkane chain induce the formation of orthogonal mesophase by means of segregation effect.
Selective para-cyanation of alkoxy- and benzyloxy-substituted benzenes with potassium ferricyanide promoted by copper(II) nitrate and iodine
Ren, Yunlai,Yan, Mengjie,Zhao, Shuang,Wang, Jianji,Ma, Junying,Tian, Xinzhe,Yin, Weiping
supporting information, p. 2301 - 2308 (2012/11/06)
A simple method was developed for selective para-cyanation of alkoxy- and benzyloxy-substituted benzenes with 0.5 equivalents of potassium ferricyanide, 0.8 equivalants of copper(II) nitrate and 0.5 equivalents of iodine in acetonitrile. Among various phenyl carbon-hydrogen bonds, those at the para-position with regard to the alkoxy or benzyloxy groups were selectively cyanated in 20% to 87% yields (23 examples). The present method uses commercially available reagents, and can be performed on a ten gram-scale. Interestingly, methoxybenzene was cyanated in 32% yield in the absence of potassium ferricyanide, which suggests that the nitrile group of a part of the product is possibly from the solvent acetonitrile. Copyright
Pyrrolopyrrole cyanine dyes: A new class of near-Infrared dyes and fluorophores
Fischer, Georg M.,Isomaki-Krondahl, Magnus,Gottker-Schnetmann, Inigo,Daltrozzo, Ewald,Zumbusch, Andreas
supporting information; experimental part, p. 4857 - 4864 (2009/12/08)
Pyrrolopyrrole cyanine (PPCy) dyes are presented as a novel class of near-infrared (NIR) chromophores, which are synthesized in a condensation reaction of diketopyrrolopyr-role with heteroarylacetonitrile compounds. Their optical properties are marked by strong and narrow-band NIR absorptions. Complexation prod-ucts with BF2 and BPh2 show strong NIR fluorescence and hardly any ab-sorption in the visible range. We syn-thesized a series of new PPCys that differ only in the heterocyclic peripheral groups of the chromophore. With this strategy, the absorption spectra can be tuned between 684 and 864 nm, while high fluorescence quantum yields are maintained. The influence of the heterocycle on the optical properties of the dyes is discussed.
Chemically-tagged Mitsunobu reagents for use in solution-phase chemical library synthesis
Starkey, Gale W.,Parlow, John J.,Flynn, Daniel L.
, p. 2385 - 2390 (2007/10/03)
A general method for high-throughput product purification of Mitsunobu reactions is described. Tagged phosphine and azodicarboxylate reagents are used to synthesize individual library members in solution-phase. Workup and purification are easily accomplished by post-reaction sequestration of the tagged reagents and reagent byproducts by a complementary functionalized ion exchange resin. The reagents are utilized in a 3 step library synthesis.
