Готові списки джерел за темами / 7-bis(trifluoromethyl)pyrazolo[1

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Добірка наукової літератури з теми "7-bis(trifluoromethyl)pyrazolo[1"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "7-bis(trifluoromethyl)pyrazolo[1"

Barlin, GB, and WL Tan. "Potential Antimalarials. V. 4-(7′-Trifluoromethylquinolin-4′-Ylamino)Phenols, 4-[2′,7′ and 2',8′-Bis(Trifluoromethyl)Quinolin-4′-Ylamino]Phenols and N4-Substituted 2,7-(and 2,8-)Bis(Trifluoromethyl)-Quinolin-4-Amines." Australian Journal of Chemistry 38, no. 12 (1985): 1827. http://dx.doi.org/10.1071/ch9851827.

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Mono- and di-Mannich bases of 4-(7′-trifluoromethylquinolin-4′- ylamino )phenol and its 2′,7′- and 2′,8′-bis( trifluoromethyl ) analogues, for example 2,6-bis(piperidin-1′-ylmethyl)-4-(7′-trifluoromethyl- quinolin-4′-ylamino)phenol, have been prepared. The Mannich bases from 4-(7′-trifluoromethyl-quinolin-4′-ylamino)phenol showed significant antimalarial activity when injected intraperitoneally in a single dose of 100 mg/kg to mice infected with Plasmodium vinckei vinckei ; those from its 2′,7′- and 2′,8′-bis( trifluoromethyl ) analogues did not show appreciable activity. Some N4-substituted 2

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Tarlton, Michael L., Steven P. Kelley, and Justin R. Walensky. "Crystal structures of metallocene complexes with uranium–germanium bonds." Acta Crystallographica Section E Crystallographic Communications 77, no. 12 (2021): 1258–62. http://dx.doi.org/10.1107/s2056989021011269.

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The first structural examples of complexes with uranium–germanium bonds are presented, namely, bis[3,5-bis(trifluoromethyl)phenyl-2κC 1](hydrido-2κH)(iodido-1κI)bis[1,1(η5)-pentamethylcyclopentadienyl]germaniumuranium(Ge—U), [GeU(C10H15)2(C8H3F6)2HI], and bis[3,5-bis(trifluoromethyl)phenyl-2κC 1](fluorido-1κI)(hydrido-2κH)bis[1,1(η5)-pentamethylcyclopentadienyl]germaniumuranium(Ge—U), [GeU(C10H15)2(C8H3F6)2FH]. The two complexes both have a long U—Ge bond [distances of 3.0428 (7) and 3.0524 (7) Å].

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Li, Ning, Xianyong Bai, Lianshuang Zhang, and Yun Hou. "Synthesis, crystal structures and anti-inflammatory activity of four 3,5-bis(arylidene)-N-benzenesulfonyl-4-piperidone derivatives." Acta Crystallographica Section C Structural Chemistry 74, no. 10 (2018): 1171–79. http://dx.doi.org/10.1107/s2053229618013232.

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3,5-Bis(arylidene)-4-piperidone (BAP) derivatives display good antitumour and anti-inflammatory activities because of their double α,β-unsaturated ketone structural characteristics. If N-benzenesulfonyl substituents are introduced into BAPs, the configuration of the BAPs would change significantly and their anti-inflammatory activities should improve. Four N-benzenesulfonyl BAPs, namely (3E,5E)-1-(4-methylbenzenesulfonyl)-3,5-bis[4-(trifluoromethyl)benzylidene]piperidin-4-one dichloromethane monosolvate, C28H21F6NO3S·CH2Cl2, (4), (3E,5E)-1-(4-fluorobenzenesulfonyl)-3,5-bis[4-(trifluoromethyl)b

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Burger, Klaus, Norbert Sewald, Erasmus Huber, and Ralph Ottlinger. "Reaktionen 4,4-Bis(trifluormethyl)-substituierter Heterodiene mit Alkinen / Reactions of 4,4-Bis(trifluoromethyl) Substituted Heterodienes with Alkynes." Zeitschrift für Naturforschung B 44, no. 10 (1989): 1298–312. http://dx.doi.org/10.1515/znb-1989-1026.

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Анотація:

4,4-Bis(trifluoromethyl) substituted 1-oxa-3-azabuta-1,3-dienes (1) and alkynes react to give open-chain trifluoromethyl substituted N-propargylic amides (4), 4H-1,3-oxazines (5) and 2-oxazolines (6, 7), respectively. The selectivity of the reaction can be controlled effectively by the reaction conditions used.

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Zang, Kai-Kai, Xiao Xiao, Li-Qiang Chen, et al. "Distinct Function of Estrogen Receptors in the Rodent Anterior Cingulate Cortex in Pain-related Aversion." Anesthesiology 133, no. 1 (2020): 165–84. http://dx.doi.org/10.1097/aln.0000000000003324.

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Background Brain-derived estrogen is implicated in pain-related aversion; however, which estrogen receptors mediate this effect remains unclear. This study hypothesized that the different estrogen receptors in the rostral anterior cingulate cortex play distinct roles in pain-related aversion. Methods Formalin-induced conditioned place avoidance and place escape/avoidance paradigms were used to evaluate pain-related aversion in rodents. Immunohistochemistry and Western blotting were used to detect estrogen receptor expression. Patch-clamp recordings were used to examine N-methyl-d-aspartate–med

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Voeltera, Wolfgang, Mustafa M. El-Abadelahb, Salim S. Sabrib, and Monther A. Khanfar. "Synthesis and Properties of Biagra . A 5-(2,3-Dihydro-7-benzofuryl) Analog of Viagra®." Zeitschrift für Naturforschung B 54, no. 11 (1999): 1469–73. http://dx.doi.org/10.1515/znb-1999-1121.

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Анотація:

The synthesis and spectral properties (IR, MS, NMR) of a substituted 5-(2,3-dihydro-7- benzofuryl)pyrazolo[4,3-d]pyrimidin-7-one (2), an analog of Viagra® (1), are described. The generally applicable route involves interaction of 2,3-dihydro-7-benzofuranoyl chloride (3) with 4-amino-l-methyl-3-propyl-5-pyrazolecarboxamide (4), and the resulting bis-amide (5) is cyclized to the corresponding substituted pyrazolo[4,3-d]pyrimidin-7-one (6). Chlorosulfonylation of 6, followed by treatment with 1-methylpiperazine, furnished the title compound 2 (named Biagra). Preliminary experiments “associated wi

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Thokchom, Herojit S., Anita D. Nongmeikapam, and Warjeet S. Laitonjam. "Synthesis of fused pyrazolo-, isoxazolo-, pyrimido-, and pyridopyrimidines." Canadian Journal of Chemistry 83, no. 8 (2005): 1056–62. http://dx.doi.org/10.1139/v05-054.

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A systematic study of the synthesis of the 5,7-diaryl-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (3), 2-phenyl-5,7-bis(2′-methylphenyl)-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (4b), 2(3H)-3-phenyl-5,7-diaryl-4-oxo-pyrazolo[3,4-d]pyrimidin-6-thiones (5), 5,7-diaryl-4-oxo-isoxazolo[5,4-d]pyrimidin-6-thiones (7), 3,5,7-triaryl-2,3-dihydro-4-oxo-isoxazalo[5,4-d]pyrimidin-6-thiones (8), 2-amino-6,8-diaryl-5-oxo-pyrimido[4,5-d]pyrimidin-7-thiones (9), 3,4-dihydro-2-amino-4-phenyl-6,8-diaryl-5-oxo-pyrimido[4,5-d]pyrimidin-7-thiones (10), 3-cyano-6,8-diaryl-2,5-dioxo-pyrido[2,3-d]pyrimidin-7-thiones (1

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Blanch, Rodney J., and Curt Wentrup. "Trifluoromethylphenylcarbenes. Carbene-Carbene Interconversion on the Singlet Energy Surface and Rearrangement to Trifluorobenzocyclobutene, Trifluorostyrene, and Trifluoromethylfulvenallenes." Australian Journal of Chemistry 68, no. 1 (2015): 36. http://dx.doi.org/10.1071/ch14097.

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The four isomeric α-, ortho-, meta-, and para-trifluoromethylphenylcarbenes were generated by photolysis of the corresponding 3-phenyl-3-trifluoromethyldiazirene 1 or the four isomeric trifluoromethylphenyldiazomethanes 2 and 4–6. The four corresponding triplet trifluoromethylphenylcarbenes 3 and 7–9 were observed by electron spin resonance (ESR) spectroscopy in Ar matrices at 14 K. The α- and ortho-carbenes 3 and 7 and the ortho- and para-carbenes 7 and 9 interconvert partially when generated by short-wavelength photolysis (350 nm) before intersystem crossing to the triplet states. The triple

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Ibrahim, Yusria R. "Synthesis of imidazo- and pyrazolothiadiazoles from dithiobiureas and dimethyl ethynedicarboxylate." Journal of Chemical Research 2009, no. 10 (2009): 602–6. http://dx.doi.org/10.3184/030823409x12510192920270.

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Microwave irradiation of 1-substituted-2, 5-dithiobiureas and 1, 6-disubstituted-2, 5-dithiobiureas with dimethyl ethynedicarboxylate gave methyl 2-{6-oxo-2-(substituted amino)imidazo-[2, 1- b][1, 3, 5]thiadiazol-5(6 H)-ylidene} acetate and methyl 7-oxo-1, 3-bis(substituted imino)-3, 7-dihydro-1 H-pyrazolo[1, 2- c][1, 3, 4]thiadiazole-5-carboxylate. Rationales for these transformations are presented.

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Jin Liu, Jin Liu, Juan Zhao Juan Zhao, and Jiu fu Lu Jiu fu Lu. "Synthesis, Crystal Structure and Antitumor Activity of 3-(2,4-dichlorophenyl)-2-phenyl-5-(p-tolyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine." Journal of the chemical society of pakistan 42, no. 4 (2020): 591. http://dx.doi.org/10.52568/000663.

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The title compound, 3-(2,4-dichlorophenyl)-2-phenyl-5-(p-tolyl)- 7-(trifluoromethyl)pyrazolo[1,5-a] pyrimidine (C26H16Cl2F3N3, Mr = 498.32) has been synthesized by condensation of 4,4,4-trifluoro-1-(p-tolyl)butane- 1,3-dione with 4-(2,4-dichlorophenyl)-3-phenyl-1H-pyrazol-5-amine. The latter was prepared from 2,4-dichlorophenylaceton itrile and ethyl benzoate through Claisen condensation and then cyclization with hydrazine hydrate. The crystal structure of the title compound was determined. In addition, the title compound possesses marked inhibition against the proliferation of human lung aden

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Більше джерел

Частини книг з теми "7-bis(trifluoromethyl)pyrazolo[1"

Taber, Douglass F. "The Snyder Synthesis of Psylloborine A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0099.

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In addition to the monomeric coccinellid alkaloids produced by the ladybug, some dimeric alkaloids, exemplified by psylloborine A 3, have been isolated. Scott A. Snyder of Scripps/Florida initially attempted a direct dimerization strategy for the assembly of 3, but when that failed, he devised (J. Am. Chem. Soc. 2014, 136, 9743) a route to the tethered dimer 1, that could indeed be cyclized to 2, the immediate precursor to 3. The starting material for both 9, the lower half of 1, and 13, the upper half of 1, was the commercial, enantiomerically-pure piperidine 4. Metalation followed by allylat

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Seibel, Zara M., and Tristan H. Lambert. "Construction of Alkylated Stereocenters." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0035.

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Hirohisa Ohmiya and Masaya Sawamura at Hokkaido University reported (Angew. Chem. Int. Ed. 2013, 52, 5350) the copper-catalyzed, γ-selective allylation of terminal alkyne 1 to produce the chiral skipped enyne 3 with high ee. A method to synthesize asymmetric skipped diene 6 via copper-catalyzed allylic allylation of diene 4 was developed (Chem. Commun. 2013, 49, 3309) by Ben L. Feringa at the University of Groningen. Prof. Feringa also disclosed (J. Am. Chem. Soc. 2013, 135, 2140) the regioselective and enantioselective allyl–allyl coupling of bromide 7 with allyl Grignard under Cu catalysis

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Тези доповідей конференцій з теми "7-bis(trifluoromethyl)pyrazolo[1"

Mohammed, Sadah, and Fadwa Eljack. "Process simulation and thermodynamic analysis of newly synthesized pre-combustion CO2 capture system using novel Ionic liquids for H2 production." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.144701.

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This paper evaluates the thermodynamic efficiency of a newly synthesized large-scale pre-combustion CO2 capture process using a novel ionic liquid (IL) 1-octyl-2,3-methylimidazolium thiocyanate [OMMIM][SCN] for blue H2 production. In addition, the potential eco-toxicity of the selected IL was assessed using the ADMETlab 2.0 web tool. The results of these analyses were compared to those of an established IL 1-butyl-2,3-dimethylimidazolium bis(trifluoromethyl sulfonyl)imide [BMMIM][TF2N]. The eco-toxicity assessment confirmed that [OMMIM][SCN] is less environmentally toxic than [BMMIM][TF2N]. Th

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