Works matching DE "PYRAZOLES"
Results: 2119
Synthesis of Pyrrole, Pyrazole, Triazole, Thiazole, Thiadiazole, and Pyrazine Derivatives from Hydrazonoyl Halides (A Review).
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- Russian Journal of Organic Chemistry, 2024, v. 60, n. 11, p. 2228, doi. 10.1134/S1070428024110125
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Pyrazolecarboxylic Acid Derivative Induces Systemic Acquired Resistance in Tobacco.
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- Bioscience, Biotechnology & Biochemistry, 2003, v. 67, n. 12, p. 2614, doi. 10.1271/bbb.67.2614
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Direct Synthesis of 4-Organylselanylpyrazoles by Copper-Catalyzed One-Pot Cyclocondensation and C--H Bond Selenylation Reactions.
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- Advanced Synthesis & Catalysis, 2015, v. 357, n. 18, p. 4041, doi. 10.1002/adsc.201500625
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Phosphine-Catalyzed Cascade Reaction of Unsaturated Pyrazolones with Alkyne Derivatives: Efficient Synthesis of Pyrano[2,3-c]pyrazoles and Spiro-cyclopentanone-pyrazolones.
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- Advanced Synthesis & Catalysis, 2015, v. 357, n. 18, p. 3986, doi. 10.1002/adsc.201500675
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Construction of Multifunctionalized Azopyrazoles by Silver- Catalyzed Cascade Reaction of Diazo Compounds.
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- Advanced Synthesis & Catalysis, 2015, v. 357, n. 12, p. 2657, doi. 10.1002/adsc.201500197
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Enantioselective Protonation by Aza-Michael Reaction between Pyrazoles and α-Substituted Vinyl Ketones.
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- Advanced Synthesis & Catalysis, 2014, v. 356, n. 17, p. 3545, doi. 10.1002/adsc.201400616
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Selective Palladium-Catalyzed Direct CH Arylation of Unsubstituted N-Protected Pyrazoles.
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- Advanced Synthesis & Catalysis, 2014, v. 356, n. 7, p. 1555, doi. 10.1002/adsc.201301139
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ortho-Allylation of 1-Arylpyrazoles with Allyl Phenyl Ether via Iron-Catalyzed CH Bond Activation under Mild Conditions.
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- Advanced Synthesis & Catalysis, 2014, v. 356, n. 7, p. 1481, doi. 10.1002/adsc.201400063
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Transition Metal Complexes with Pyrazole Based Ligands.
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- Journal of Thermal Analysis & Calorimetry, 2003, v. 74, n. 3, p. 943
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The analgesic efficacy of dipyrone during removal of nasal packings after septal surgery.
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- Journal of Headache & Pain, 2004, v. 5, n. 4, p. 243, doi. 10.1007/s10194-004-0133-2
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- Article
A theoretical study of the bond-dissociation enthalpies (BDH), N–R bond lengths and proton affinities of N-substituted pyrroles, imidazoles and pyrazoles with R substituents along the periodic table.
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- Theoretical Chemistry Accounts: Theory, Computation, & Modeling, 2025, v. 144, n. 1, p. 1, doi. 10.1007/s00214-024-03167-0
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A theoretical study of dynamic processes observed in trimethylsilyl-1H-pyrazoles: prototropy and silylotropy.
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- Theoretical Chemistry Accounts: Theory, Computation, & Modeling, 2022, v. 141, n. 12, p. 1, doi. 10.1007/s00214-022-02936-z
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- Article
Unexpected Reaction Course of 3-Amino-5-aryl-1 H-pyrazoles with Dialkyl Dicyanofumarates.
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- Helvetica Chimica Acta, 2013, v. 96, n. 4, p. 633, doi. 10.1002/hlca.201200633
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One-Pot Synthesis of 4-(2,3-Dihydro-2-hydroxy-1,3-dioxo-1 H-inden-2-yl)-Substituted 1-Aryl-1 H-pyrazole-3-carboxylates via a Tandem Three-Component Reaction.
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- Helvetica Chimica Acta, 2012, v. 95, n. 2, p. 278, doi. 10.1002/hlca.201100317
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Facile Synthesis, Single-Crystal Structure, and Biological Evaluation of Novel Pyrazolo[5,1- d][1,2,5]triazepin-4-ones.
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- Helvetica Chimica Acta, 2012, v. 95, n. 1, p. 134, doi. 10.1002/hlca.201100249
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A Simple Synthesis of 5-(2-Aminophenyl)-1 H-pyrazoles.
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- Helvetica Chimica Acta, 2011, v. 94, n. 9, p. 1703, doi. 10.1002/hlca.201100055
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- Article
An Efficient NArylation of Heterocycles with Aryl, Heteroaryl, and Vinylboronic Acids Catalyzed by Copper Fluorapatite.
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- Helvetica Chimica Acta, 2010, v. 93, n. 5, p. 974
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Diazodiphenylmethane and Monosubstituted Butadienes: Kinetics and a New Chapter of Vinylcyclopropane Chemistry1,3-Dipolar Cycloadditions, Part 137; for Part 136, see 1.
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- Helvetica Chimica Acta, 2008, v. 91, n. 5, p. 783, doi. 10.1002/hlca.200890081
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Efficient Synthesis of 14C-Labeled 1H-Pyrazolo3,4-dpyrimidine and Related 4.3.0-Bicyclic Pyrimidino Systems.
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- Helvetica Chimica Acta, 2008, v. 91, n. 5, p. 958
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A Concise One-Pot Synthesis of 3,4-Diaryl-1H-pyrazoles from Natural Isoflavones and Hydrazine Hydrate.
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- Helvetica Chimica Acta, 2007, v. 90, n. 11, p. 2096, doi. 10.1002/hlca.200790217
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Silver and Gold Trinuclear Complexes Based on 3-Substituted or 3,5-Disubstituted Pyrazolato Ligands. X-Ray Crystal Structure of cyclo-Tris{μ-[3,5-bis(4-phenoxyphenyl)-1H-pyrazolato-κN<sup>1</sup> : κN<sup>2</sup>]}trigold Dichloromethane ([Au(μ-<tex>$\rm{ pz^{pp_2 }}$</tex>)]<sub>3</sub>·CH<sub>2</sub>Cl<sub>2</sub>)
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- Helvetica Chimica Acta, 2004, v. 87, n. 1, p. 250
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- Article
Novel Route to L-Hexoses from L-Ascorbic Acid: Asymmetric Synthesis of L-Galactopyranose and L-Talopyranose Preliminary Communication.
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- Helvetica Chimica Acta, 2003, v. 86, n. 11, p. 3578
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- Article
The Counterion Effect on the Assembly of Coordination Networks of Cationic (η<sup>3</sup>-Allyl)palladium Complexes Containing 3,5-Dimethyl-4-nitro-1H-pyrazole.
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- Helvetica Chimica Acta, 2003, v. 86, n. 9, p. 3194
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- Article
Synthesis of New Pyrazole-Methylmaleopimarate Conjugates.
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- Chemistry of Natural Compounds, 2016, v. 52, n. 4, p. 651, doi. 10.1007/s10600-016-1731-3
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- Article
Synthesis of 6-(3-Pyrazolyl)-4-Methylumbelliferone Derivatives Substituted on the Pyrazole Ring.
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- Chemistry of Natural Compounds, 2015, v. 51, n. 4, p. 630, doi. 10.1007/s10600-015-1371-z
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- Article
Synthesis of 4-aryl-3-[2-hydroxy-4-(2-cytisin-12-ylethoxy)phenyl]pyrazoles.
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- Chemistry of Natural Compounds, 2014, v. 50, n. 5, p. 889, doi. 10.1007/s10600-014-1107-5
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Synthesis of 7-β-( N, N-dialkylamino)ethoxy derivatives of natural isoflavones and 4-aryl-3-[2-hydroxy-4-β-( N, N-dialkylamino) ethoxy]phenylpyrazoles based on them.
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- Chemistry of Natural Compounds, 2013, v. 49, n. 1, p. 36, doi. 10.1007/s10600-013-0500-9
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Synthesis of ethers of (+)-usninic acid pyrazole derivatives.
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- Chemistry of Natural Compounds, 2012, v. 48, n. 3, p. 379, doi. 10.1007/s10600-012-0257-6
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Reduction of (+)-usninic acid and its pyrazole derivative by sodium borohydride.
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- Chemistry of Natural Compounds, 2011, v. 47, n. 2, p. 203, doi. 10.1007/s10600-011-9882-8
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- Article
Synthesis and sedative activity of 5-(4'-β-D-allopyranosyloxyphenyl)-3-aryl- 4,5-dihydropyrazole-1-carbothioamides.
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- Chemistry of Natural Compounds, 2010, v. 46, n. 3, p. 417, doi. 10.1007/s10600-010-9631-4
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Modified coumarins. 30. Synthesis of 6-heteroarylcoumarins.
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- Chemistry of Natural Compounds, 2009, v. 45, n. 2, p. 164, doi. 10.1007/s10600-009-9262-9
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- Article
Chemical Modification of Plant Alkaloids. 4. Reaction of Cotarnine with Bifunctional NH- and CH-Acids.
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- Chemistry of Natural Compounds, 2005, v. 41, n. 4, p. 446, doi. 10.1007/s10600-005-0174-z
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- Article
Formation of the Dinitro-3H-pyrazole Derivative of Cycloartemisiaketone Oxime.
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- Chemistry of Natural Compounds, 2004, v. 40, n. 2, p. 134, doi. 10.1023/B:CONC.0000033928.00722.fa
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- Article
The first example of a cine-substitution in a series of 1,3-dinitropyrazoles.
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- Chemistry of Heterocyclic Compounds, 2024, v. 60, n. 5/6, p. 257, doi. 10.1007/s10593-024-03330-2
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- Article
Recent methods for the synthesis of fused pyrazolo[3,4(4,3)-d]thiazoles and pyrazolo[3,4(4,3)-d][1,4]thiazines (microreview).
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- Chemistry of Heterocyclic Compounds, 2023, v. 59, n. 9/10, p. 643, doi. 10.1007/s10593-023-03249-0
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- Article
Expanding the isoflavone, pyrazole, and oxazole chemical space through 2'-carboxamido-2-hydroxydeoxybenzoin precursors.
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- Chemistry of Heterocyclic Compounds, 2023, v. 59, n. 6/7, p. 479, doi. 10.1007/s10593-023-03219-6
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Synthesis, structure, and biological activity of 4-hetaryl-2-pyrrolidones containing a pyrazole ring.
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- Chemistry of Heterocyclic Compounds, 2022, v. 58, n. 11, p. 598, doi. 10.1007/s10593-022-03140-4
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An AgOAc-catalyzed reaction of 3-nitro-2H-chromenes with ethyl diazoacetate: an efficient one-pot synthesis of ethyl 3,4-dihydrochromeno[3,4-c]pyrazole-1-carboxylates.
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- Chemistry of Heterocyclic Compounds, 2022, v. 58, n. 11, p. 646, doi. 10.1007/s10593-022-03128-0
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N-3,3,3-Trifluoropropenyl derivatives of azoles.
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- Chemistry of Heterocyclic Compounds, 2022, v. 58, n. 2/3, p. 129, doi. 10.1007/s10593-022-03065-y
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- Article
Synthesis of five-membered heterocycles by [3+2] cycloaddition reactions of sulfur-containing 3,3,3-trifluoropropene derivatives.
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- Chemistry of Heterocyclic Compounds, 2021, v. 57, n. 12, p. 1149, doi. 10.1007/s10593-021-03035-w
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- Article
[3+2] Cycloaddition reactions of 1-substituted 3,3,3-trifluoropropenes with diazo compounds and nitrilimines – synthesis of pyrazolines and pyrazoles.
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- Chemistry of Heterocyclic Compounds, 2021, v. 57, n. 11, p. 1107, doi. 10.1007/s10593-021-03029-8
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- Article
Pyrazoles, isoxazoles, and 1,2,3-triazoles as analogs of the natural cytostatic combretastatin A-4: efficient routes of synthesis, tubulin inhibition, and cytotoxicity.
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- Chemistry of Heterocyclic Compounds, 2021, v. 57, n. 11, p. 1061, doi. 10.1007/s10593-021-03025-y
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- Article
Addition reaction of various azoles to perfluoromethyl vinyl ether.
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- Chemistry of Heterocyclic Compounds, 2021, v. 57, n. 6, p. 666, doi. 10.1007/s10593-021-02965-9
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- Article
1,5-Diarylpent-4-ene-1,3-diones in the synthesis of spiro[(thia)pyrrolizidine-3,3'-oxindoles] and 1,3-diaryl-5-spiro[oxindole-3,3'-pyrrolizidin-2'-yl]-1H-pyrazoles.
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- Chemistry of Heterocyclic Compounds, 2021, v. 57, n. 1, p. 81, doi. 10.1007/s10593-021-02871-0
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- Article
Target-oriented synthesis of functionalized pyrazolo-fused medium-sized N,S-heterocycles via Friedel–Crafts ring closure approach.
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- Chemistry of Heterocyclic Compounds, 2020, v. 56, n. 10, p. 1353, doi. 10.1007/s10593-020-02822-1
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- Article
Reactions of thiiranes with NH-heterocycles 1. An investigation of the reaction of 2-chloromethylthiirane with 3,5-dibromo-4-nitropyrazole.
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- Chemistry of Heterocyclic Compounds, 2020, v. 56, n. 9, p. 1213, doi. 10.1007/s10593-020-02800-7
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- Article
The potential of employing substituted bis[3-hydroxy-2-(pyrimidin-2-yl)-2Н-pyrazol-4-yl]methane for the synthesis of symmetrical N,O-macroheterocycles with a dioxacycloalkane central fragment.
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- Chemistry of Heterocyclic Compounds, 2018, v. 54, n. 12, p. 1168, doi. 10.1007/s10593-019-02409-5
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- Article
Synthesis and properties of 5-aryl-3-diazo-3H-pyrazoles and 3-aryl-1H-pyrazole-5-diazonium salts. Preparation and cytolytic activity studies of 2-arylpyrazolo-[5,1-c][1,2,4]benzotriazines.
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- Chemistry of Heterocyclic Compounds, 2018, v. 54, n. 12, p. 1145, doi. 10.1007/s10593-019-02406-8
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Heterocyclization reactions using malononitrile dimer (2-aminopropene-1,1,3-tricarbonitrile).
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- Chemistry of Heterocyclic Compounds, 2018, v. 54, n. 11, p. 989, doi. 10.1007/s10593-018-2383-y
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- Article
Synthesis and Antifungal Activity of 3-substituted 5-ferrocenyl-1H-pyrazoles.
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- Chemistry of Heterocyclic Compounds, 2018, v. 54, n. 10, p. 951, doi. 10.1007/s10593-018-2379-7
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- Article