Academic literature on the topic 'Phenylthioureas'

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Journal articles on the topic "Phenylthioureas"

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Kaválek, Jaromír, Josef Jirman, and Vojeslav Štěrba. "Kinetics and mechanism of rearrangement and methanolysis of acylphenylthioureas." Collection of Czechoslovak Chemical Communications 50, no. 3 (1985): 766–78. http://dx.doi.org/10.1135/cccc19850766.

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S-Acyl-1-phenylthioureas and their 3-methyl derivatives are rearranged to 1-acyl derivatives of thiourea in methanolic solution. The rearrangement of the 1-acyl-1-phenyl derivative to the thermodynamically more stable 3-acyl derivative is subject to specific base catalysis. The rearrangement of acetyl group is about 2 orders of magnitude slower than that of benzoyl group. 1-Acetyl-l-phenylthiourea undergoes base-catalyzed methanolysis (giving phenylthiourea and methyl acetate) instead of the rearrangement. The methanolysis rates of l-acyl-3-phenylthioureas and their N-methyl derivatives have b
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B., H. Zaware, A. Mane R., and B. Ingle D. "Kinetics of reaction of chloroacetone with thioureas." Journal of Indian Chemical Society Vol. 77, Apr 2000 (2000): 213–14. https://doi.org/10.5281/zenodo.5867060.

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Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad-431 004, India <em>Manuscript received 20 July 1998, revised 16 August 1999, accepted 26 November 1999</em> The second order rate constants for the reactions of chloroacetone with thiourea, phenylthiourea and p-substituted phenylthioureas have been evaluated in ethanol medium. The rate of reaction is first order with respect to chloroacetone and first order with respect to thioureas. The effect of substituents on the rate of reaction is also studied. Thermodynamic parameters are used to explain the nature of reac
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Tanimori, Shinji, Asuka Fuchiya, Takuya Miyamura, et al. "A Facile Synthesis of 2-Aminobenzoxazines Based on Iodine­Catalyzed Desulfurative Cyclization." Synthesis 54, no. 02 (2021): 483–89. http://dx.doi.org/10.1055/s-0040-1719832.

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AbstractA facile and environmentally benign access to N-aryl/alkyl-4H-benzoxazin-2-amines is achieved from 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas under transition-metal-free conditions. The conversions occur smoothly in the presence of a catalytic amount of molecular iodine and hydrogen peroxide as the oxidant in tetrahydrofuran at room temperature to afford moderate to good yields (28–90%) of the desired products within 2 hours. This method reports the first examples of the catalytic transformations of 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas into N-aryl/alkyl-4H-benzo
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Tanimori, Shinji, Asuka Fuchiya, Takuya Miyamura, et al. "A Facile Synthesis of 2-Aminobenzoxazines Based on Iodine­Catalyzed Desulfurative Cyclization." Synthesis 54, no. 02 (2021): 483–89. http://dx.doi.org/10.1055/s-0040-1719832.

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AbstractA facile and environmentally benign access to N-aryl/alkyl-4H-benzoxazin-2-amines is achieved from 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas under transition-metal-free conditions. The conversions occur smoothly in the presence of a catalytic amount of molecular iodine and hydrogen peroxide as the oxidant in tetrahydrofuran at room temperature to afford moderate to good yields (28–90%) of the desired products within 2 hours. This method reports the first examples of the catalytic transformations of 1-[2-(hydroxymethyl)phenyl/alkyl]-3-phenylthioureas into N-aryl/alkyl-4H-benzo
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Spooner, Michael J., and Philip A. Gale. "Anion transport across varying lipid membranes – the effect of lipophilicity." Chemical Communications 51, no. 23 (2015): 4883–86. http://dx.doi.org/10.1039/c5cc00823a.

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Qian, Xuhong, Zhibin Li, Gonghua Song, and Zhong Li. "Yellow HgO as an efficient Cyclodesulfurising agent in the Synthesis of 2-substituted Aminobenzoxazoles from N-(2-hydroxyphenyl)-N′-phenylthioureas." Journal of Chemical Research 2001, no. 4 (2001): 138–39. http://dx.doi.org/10.3184/030823401103169441.

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Srikrishna, Devulapally, and Pramod Kumar Dubey. "PEG-600 mediated one-pot reaction of 3-acetyl-2H-chromen-2-one with heterylthiols and phenylthioureas using tetrabutylammonium tribromide as an efficient green reagent." New Journal of Chemistry 41, no. 12 (2017): 5168–75. http://dx.doi.org/10.1039/c7nj00504k.

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A simple method for the one-pot reaction of 3-acetyl-2H-chromen-2-one with different heterylthiols and phenylthioureas under green conditions using tetrabutylammonium tribromide (TBATB) as an efficient reagent has been described.
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Macías, A., A. Rosado, and E. Otazo. "Pyrolysis of 1-furoyl-3-phenylthioureas in mass spectrometry." Journal of Analytical and Applied Pyrolysis 38, no. 1-2 (1996): 55–60. http://dx.doi.org/10.1016/s0165-2370(96)00949-7.

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Coppola, Gary M., Robert E. Damon, J. Bruce Eskesen, Dennis S. France, and James R. Paterniti. "1-Hydroxyalkyl-3-phenylthioureas as novel HDL-elevating agents." Bioorganic & Medicinal Chemistry Letters 15, no. 3 (2005): 809–12. http://dx.doi.org/10.1016/j.bmcl.2004.10.094.

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Kaválek, Jaromír, Josef Jirman, Vladimír Macháček, and Vojeslav Štěrba. "The methanolysis kinetics and dissociation constants of 1-(subst. benzoyl)-3-phenylthioureas." Collection of Czechoslovak Chemical Communications 53, no. 3 (1988): 593–600. http://dx.doi.org/10.1135/cccc19880593.

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A series of seven 1-(subst. benzoyl)-3-phenylthioureas have been prepared and their dissociation constants and solvolysis rate constants have been measured in methanol at 25 °C. The reaction constants found show that the solvolysis rate is limited by the attack of methoxide ion on the benzoyl carbonyl group of the non-dissociated substrate. The polar effect of substituents in benzoyl group is extensively transferred also by the intramolecular hydrogen bond.
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Books on the topic "Phenylthioureas"

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Genetic Variation in Taste Sensitivity (Food Science and Technology). CRC, 2004.

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Prescott, John, and Beverly J. Tepper. Genetic Variation in Taste Sensitivity. Taylor & Francis Group, 2004.

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Book chapters on the topic "Phenylthioureas"

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"Phenylthiourea." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_12707.

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Ramasamy Sivakumar, Mullaivanam, and Rangasamy Shanthi. "Plasma and Hemocyanin Phenoloxidase Derived from the Hemolymph of Giant Freshwater Prawn Macrobrachium rosenbergii (De Man, 1879)." In Crustacea - Nano, Micro and Macro Studies [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.104268.

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We attempted to study the immune response in M. rosenbergii by melanization reaction produced by plasma phenoloxidase (PO) activity. The substrate affinity of the PO enzyme was determined using different phenolic substrates, and it was found that the diphenols were only oxidized. The enzyme was characterized as catechol oxidase type of PO and L-3,4 dihydroxyphenylalanine (L-DOPA) showed the highest substrate affinity to the enzyme. The biochemical parameters that determined optimum enzyme activity were found to be 2.5 mM L-DOPA at an absorbance of 470 nm, 10 mM Tris–HCl buffer at pH 7.5, tempe
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KAMMÜLLER, M. E., A. H. PENNINKS, and W. SEINEN. "Cyclization Products of Phenylthiourea Compounds in Adulterated Rapeseed Oil as possible Aetiological Factor in Spanish Toxic Oil Syndrome." In Advances in Immunopharmacology. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-032008-3.50062-x.

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Conference papers on the topic "Phenylthioureas"

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Trabanelli, G., A. Frignani, G. Brunoro, C. Monticelli, and F. Zucchi. "Corrosion and Inhibition of Low Alloyed Chromium Steels in Hydrofluoric Acid Solutions." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85376.

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Abstract This paper investigates the influence chromium content exerts on the corrosion resistance of low alloyed chromium steels in hydrofluoric acid solution and compares it with the corrosion resistance in other acids, such as hydrochloric, perchloric and sulphuric. Weight losses were performed on ASTM A 106 steel and on ASTM A335 type steel (chromium content: 1.5-10%) in 1.7 N HF; 1.4 N HCl; 1.5 N H2SO4 and 1.5 N HClO4 at 45 °C. These tests showed that chromium decreases the corrosion resistance of the tested iron-chromium alloys in HClO4, H2SO4 and especially in HF solutions. Different pu
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Zhang, Di, Zhilong Ding, Tiantian Guo, et al. "Experimental and theoretical studies on THz spectra of phenylthiourea compounds." In 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2013). IEEE, 2013. http://dx.doi.org/10.1109/irmmw-thz.2013.6665547.

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Zevallos-Delgado, Christian, Taye Mekonnen, Yogeshwari S. Ambekar, et al. "Assessment of the biomechanical changes on zebrafish larvae eye development caused by phenylthiourea (PTU) treatment using reverberant optical coherence elastography (Rev-OCE)." In Optical Elastography and Tissue Biomechanics XI, edited by Kirill V. Larin and Giuliano Scarcelli. SPIE, 2024. http://dx.doi.org/10.1117/12.3003390.

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Khan, Adnan, Amani Hassanein, Abdul Shakoor, Ramazan kahraman, Fatima Montemor, and Anwarul Hasan. "Hybrid Microcapsules Reinforced Smart Coatings for Corrosion Protection in Oil and Gas Industry." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0014.

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Corrosion is one of the critical causes of material loss in metal components. This research is focused on the synthesis, and electrochemical properties of polyelectrolyte layered microcapsules (PMCs) reinforced smart polymeric coating for corrosion protection of steel substrates. For this purpose, monolayer urea-formaldehyde microcapsules encapsulated with linalyl acetate (MLMCs) was synthesized by Insitu polymerization. In the next step, phenylthiourea (PTU) was loaded between the layers of polyelectrolytes; polyethylenimine (PEI) &amp; sulfonated polyether ether ketone (SPEEK) on the surface
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