29147-90-8Relevant academic research and scientific papers
New tetrazole based dyes as efficient co-sensitizers for dsscs: Structure-properties relationship
Freeman, Harold S.,Sánchez, Mario,da Silva, Luciano
, (2020)
Two new compounds based on the phenyltetrazole system, 5-(4-decyloxyphenyl)tetrazole (LTz-4) and N,N-diethyl-4-{[(2′-nitro-4′-tetrazoyl)phenyl]diazenyl}aniline (SD - 6), were synthesized and characterized as co-adsorbents in Dye-Sensitized Solar Cells (DSSCs). The effects of hydrophobic chain length and anchoring group on the properties of DSSCs containing the previously reported dye HD-14 and compared with the benchmark deoxycholic acid (DCA) are described. The charge-transfer resistance of dye/TiO2 interface followed the order HD-14 – SD - 6 > HD-14 – LTz-4 > HD-14 –DCA. However, the VOC for the dye HD-14 with co-adsorbent DCA was 0.71 V, for the and the dye HD-14 with co-adsorbent LTz-4 was 0.70 V and for the dye HD-14 with co-adsorbent SD - 6 was 0.67 V. Co-adsorbents LTz-4 and SD - 6 achieved mean solar-to-power conversion efficiencies (%η), for three devices, of 9.20 and 7.48, respectively, compared to 9.14 for DCA under the same experimental device conditions. For LTz-4 co-adsorbent, the results can be attributed to the repellent effect of the long alkyl chain that prevents the charge recombination on the semiconductor surface. For SD - 6, the molecular volume of the co-adsorbent and the presence of the nitro group in a lateral position should make it difficult to form a more compact layer with the dye. The sum of these contributions would allow the electrolyte to approach, reducing the efficiency of electron injection into TiO2.
Aromatic π-π Driven supergelation, aggregation induced emission and columnar self-assembly of star-shaped 1,2,4-oxadiazole derivatives
Pathak, Suraj Kumar,Pradhan, Balaram,Gupta, Ravindra Kumar,Gupta, Monika,Pal, Santanu Kumar,Achalkumar, Ammathnadu S.
supporting information, p. 6546 - 6561 (2016/07/19)
A new family of star shaped 1,2,4-oxadiazole derivatives with the variation in the number of flexible peripheral tails have been synthesized and characterized. It is interesting to note that the number of flexible tails at the periphery dictated the self-
Enantioselective synthesis and enhanced circularly polarized luminescence of S-shaped double azahelicenes
Nakamura, Kyosuke,Furumi, Seiichi,Takeuchi, Masayuki,Shibuya, Tetsuro,Tanaka, Ken
supporting information, p. 5555 - 5558 (2014/05/06)
The enantioselective synthesis of azahelicenes and S-shaped double azahelicenes has been achieved via the Au-catalyzed sequential intramolecular hydroarylation of alkynes. The use of excess AgOTf toward a Au(I) complex is crucial for this transformation. Interestingly, the circularly polarized luminescence activity of the S-shaped double azahelicenes was significantly higher than that of the azahelicenes.
AMINE COMPOUNDS HAVING ANTI-INFLAMMATORY, ANTIFUNGAL, ANTIPARASITIC AND ANTICANCER ACTIVITY
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Page/Page column 133-134; 171, (2014/08/19)
Amine compounds having activity against inflammation, fungi, unicellular parasitic microorganisms, and cancer are described. The compounds contain a monocyclic, bicyclic, or tricyclic aromatic ring having one, two, or three ring nitrogen atoms.
HEAT-STABLE DIKETOPYRROLOPYRROLE PIGMENT MIXTURES
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Page/Page column 30, (2010/02/11)
The present invention relates to a process for the preparation of a mixture comprising at least two structurally different diketopyrrolopyrrole pigments of formula (1) wherein A1 and A2 are each independently of the other an aromatic or heteroaromatic radical, by reacting a succinic acid ester with at least one unsubstituted or substituted aromatic or heteroaromatic nitrile, which process comprises carrying out the reaction in the presence of at least one compound of formula (2) wherein A is an aromatic or heteroaromatic radical, R3is hydrogen, halogen, methyl, methoxy, -CF3 or -CN, R4 is a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, X is -S-, -0-, -CR5R5'-, -COO-, -CONR5-, -SO-, SO2-, -SO2NR5- or -NR5 -and R5 and R5'are each independently of the other hydrogen or a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, to the use of such a mixture in the colouring of organic material and in cosmetics, and also to novel diketopyrrolopyrrole pigment mixtures.
4-Alkoxybenzamidines as new potent phospholipase A2 inhibitors
Aitdafoun, Mina,Mounier, Carine,Heymans, Francoise,Binisti, Carine,Cassian, Bon,Godfroid, Jean-Jacques
, p. 737 - 742 (2007/10/03)
A series of 4-alkoxybenzamidines was synthesized, varying the number of carbons of the alkyl chain, and their potency as phospholipase A2 (PLA2) inhibitors was evaluated. The relationship between their capacity to inhibit PLA2 activity and their lipophilicity was examined. The optimum of the inhibitory effect against two extracellular PLA2s from rabbit platelets and bovine pancreas was observed with compounds bearing an alkyl chain of 12 and 14 carbons. These 4-dodecyl and tetradecyloxybenzamidines inhibited bovine pancreatic and rabbit platelet lysate PLA2s with IC50 values of 3 μM and 5-5.8 μM, respectively. The mechanism of inhibition was of the competitive type. In addition, 4-tetradecyloxybenzamidine was shown to exert an anti-inflammatory effect in vivo on the carrageenan-induced rat paw oedema. These results show that 4-tetradecyloxybenzamidine will serve as an interesting tool to investigate the physiological role of mammalian-secreted PLA2, both in vitro and in vivo.
Development of a Series of Phenyltetrazole Leukotriene D4(LTD4) Receptor Antagonist
Harper, Richard W.,Herron, David K.,Bollinger, Nancy G.,Sawyer, J. Scott,Baldwin, Ronald F.,et al.
, p. 1191 - 1200 (2007/10/02)
A hypothetical model for receptor binding of leukotriene D4 (LTD4) was deduced from conformational analysis of LTD4 and from the structure-activity relationships (SAR) of known LTD4 receptor antagonists.A new structural series of LTD4 receptor antagonists exemplified by 5--2--2H-tetrazole was designed in which a phenyltetrazole moiety was incorporated as a receptor binding equivalent of the triene unit of LTD4.A number of these phenyltetrazoles were prepared and found to possess LTD4 receptor antagonist activity.The structure-activity relationship (SAR) of this series is described.
