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Journal articles on the topic 'Perkiu reaction'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

G.Nagaraju1, *. Dr.Vijaya Kuchana. "A REVIEW ON BIOLOGICAL ACTIVITY AND SYNTHETIS OF COUMARINS." Indo American Journal of Pharmaceutical Sciences 04, no. 10 (2017): 3510–27. https://doi.org/10.5281/zenodo.1004361.

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Coumarin (1,2-Benzopyrone or 2H-1-benzopyran-2-one, or phenylpropanoids, 1) and its derivatives (coumarins) are widely distributed throughout nature and many exhibit useful and diverse biological activities1,2. Coumarins occur as secondary metabolites in the seeds, roots and leaves of many plant species, notably in high concentration in the tonka bean and thus the name comes from a French word, coumarou, for the tonka bean. Their function is far from clear, although suggestions include plant growth regulations, fungistasis, bacteriostasis and, even, waste products3 . Some naturally occurring c

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2

N., Venkatesh Kumar, Suhramani B., and P. Rajendran S. "A new synthesis of 5-substituted-3-phenyl-2H-pyrano[2,3-b ]quinolin-2-ones." Journal of Indian Chemical Society Vol. 80, Oct 2003 (2003): 918–20. https://doi.org/10.5281/zenodo.5839422.

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Department of Chemistry. Bharathiar University, Coimbatore-641 046, India <em>Manuscript received 17 May 2002, accepted 23 May 2003</em> Synthesis of title compounds and derivatives is reported by the Perkin reaction of 3-formyl-4-phenyl/methyl-2-quinolones (3) with sodium salt of phenylacetic acid. The 3-formyl-2-quinolones 3 were obtained from 2-chloro-3-forml-4-phenyl/ methylquinolines (2) which ilium were prepared from 2-chloro-4-phenyl/methyl-3-vinylquinolines (1).

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3

Jumal, Juliana, and Norhanis Sakinah. "Synthesis, Characterization, and Applications of Coumarin Derivatives: A Short Review." Malaysian Journal of Science Health & Technology 7, no. 1 (2021): 62–68. http://dx.doi.org/10.33102/mjosht.v7i1.145.

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Coumarin and its derivatives represent one of the most active curriculums of compound possessing a broad spectrum of biological activity along with other applications such as insecticide and fragrance. There are various methodologies developed for the synthesis of coumarins. Classical routes to coumarins include Pechmann condensation, Knoevenagel condensation, Perkin reaction, and Wittig condensation reactions. Researchers have carried out adjustments and improvements to increase the efficacy and overcome the limitations from the classical route. In this review outline, coumarin derivatives we

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4

Geske, Leander, Ulrich Kauhl, Mohamed Saeed, et al. "Xylochemical Synthesis and Biological Evaluation of Shancigusin C and Bletistrin G." Molecules 26, no. 11 (2021): 3224. http://dx.doi.org/10.3390/molecules26113224.

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The biological activities of shancigusin C (1) and bletistrin G (2), natural products isolated from orchids, are reported along with their first total syntheses. The total synthesis of shancigusin C (1) was conducted by employing the Perkin reaction to forge the central stilbene core, whereas the synthesis of bletistrin G (2) was achieved by the Wittig olefination followed by several regioselective aromatic substitution reactions. Both syntheses were completed by applying only renewable starting materials according to the principles of xylochemistry. The cytotoxic properties of shancigusin C (

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5

Brady, William T., and Yi-Qi Gu. "Benzofurans. Ketene intermediates in the perkin reaction." Journal of Heterocyclic Chemistry 25, no. 3 (1988): 969–71. http://dx.doi.org/10.1002/jhet.5570250350.

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6

Anteunis, M. "Some Perkin-reactions with sodium succinate." Bulletin des Sociétés Chimiques Belges 69, no. 7-8 (2010): 356–61. http://dx.doi.org/10.1002/bscb.19600690703.

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7

Badea, Irinel, Philippe Cotelle, and Jean-Pierre Catteau. "AN EFFICIENT METHOD FOR THE SYNTHESIS OF NEW SUBSTITUTED CHROMENS." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 9, no. 10 (2001): 1–4. http://dx.doi.org/10.48141/sbjchem.v9.n10.2001.4_2001.pdf.

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8

Purwaningsih, Yuliana, Erwin Indriyanti, and Ahmad Fuad Masduqi. "Synthesis of PMCA (P-Methoxy Cinnamic Acid) using Perkin Reaction and Its Activity as Photo Protective and Antifungal Agent." JKPK (Jurnal Kimia dan Pendidikan Kimia) 7, no. 2 (2022): 138. http://dx.doi.org/10.20961/jkpk.v7i2.61294.

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<p class="Standard"><span>This study aimed to synthesize p-methoxy cinnamic acid through the Perkin reaction and to determine its activity as a photoprotective and antifungal agent against Candida albicans. The PMCA compound was synthesized by reacting p-methoxy benzaldehyde with acetic anhydride using a sodium acetate catalyst in a sonicator at 50oC for 60 minutes. The synthesized was a white precipitate with a % yield of 2.09% and a melting point of 172-175<sup>o</sup>C. ATR-FTIR identified this compound with several functional groups, C=O, OH carboxylic acid, para-su

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9

Ojima, Fumihiro, and Tetsuo Osa. "Perkin–Markovnikov Type Reaction Initiated with Electrogenerated Superoxide Ion." Bulletin of the Chemical Society of Japan 62, no. 10 (1989): 3187–94. http://dx.doi.org/10.1246/bcsj.62.3187.

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10

Edwards, Mark, Paul M. Rourk, Philip G. Riby, and Andrew P. Mendham. "Not quite the last word on the Perkin reaction." Tetrahedron 70, no. 40 (2014): 7245–52. http://dx.doi.org/10.1016/j.tet.2014.07.053.

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11

Ojima, Fumihiro, Tomokazu Matsue, and Tetsuo Osa. "Perkin–Markovnikov Type Reaction Initiated with Electrogenerated Superoxide Ion." Chemistry Letters 16, no. 11 (1987): 2235–38. http://dx.doi.org/10.1246/cl.1987.2235.

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12

Petrosyan, V. A., A. A. Vasil'ev, and V. I. Tatarinova. "Electrosynthesis of cyclopropane derivatives by a Perkin-type reaction." Russian Chemical Bulletin 43, no. 1 (1994): 84–88. http://dx.doi.org/10.1007/bf00699141.

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13

Sarkar, Parantap, Fabien Durola, and Harald Bock. "Dipyreno- and diperyleno-anthracenes from glyoxylic Perkin reactions." Chemical Communications 49, no. 68 (2013): 7552. http://dx.doi.org/10.1039/c3cc44044c.

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14

Heichert, Christoph, and Horst Hartmann. "On the Formation of Mauvein: Mechanistic Considerations and Preparative Results." Zeitschrift für Naturforschung B 64, no. 6 (2009): 747–55. http://dx.doi.org/10.1515/znb-2009-0622.

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The reaction of aniline (AH2) with an oxidizing agent in acidic solution gives rise to the formation of a mixture of products containing, besides a variety of oligoanilines named as Aniline Black or Polyaniline, Mauvein as a deeply purple phenazine derivative. Although this Mauvein synthesis was developed by W.H. Perkin more than 150 years ago and has opened the era of industrial dyestuff chemistry, the detailed mechanism of this reaction has remained rather unclear until today. The elucidation of the mechanism of the Mauvein formation as an oxidative coupling process of AH2 is hindered by the

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15

Robert, Antoine, Pierre Dechambenoit, Harald Bock, and Fabien Durola. "A carboxyfunctionalized (24)-1,6-pyrenophane-tetraene by glyoxylic Perkin condensation." Canadian Journal of Chemistry 95, no. 4 (2017): 450–53. http://dx.doi.org/10.1139/cjc-2016-0585.

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Without employing high dilution conditions, the fourfold 2+2 Perkin reaction of 1,6-pyrenylene-diglyoxylic acid with its reduction product 1,6-pyrenylene-diacetic acid yields the corresponding tetrameric conjugated macrocycle in 25% overall yield after in-situ esterification. The macrocycle adopts a square fourfold symmetry in the crystal, with near-vertical pyrene walls that alternatingly tilt upwards and downwards.

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16

Veverkova, E., E. Pacherova, and S. Toma. "ChemInform Abstract: Examination of the Perkin Reaction under Microwave Irradiation." ChemInform 31, no. 10 (2010): no. http://dx.doi.org/10.1002/chin.200010100.

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17

Polya, J. B., and T. M. Spotswood. "Amides VII. The use of diacylimines in the perkin reaction." Recueil des Travaux Chimiques des Pays-Bas 70, no. 2 (2010): 146–54. http://dx.doi.org/10.1002/recl.19510700208.

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18

Sevenard, Dmitri V. "3-Polyfluoroalkyl-substituted E-cinnamic acids: easy access via Perkin reaction." Tetrahedron Letters 44, no. 38 (2003): 7119–20. http://dx.doi.org/10.1016/s0040-4039(03)01830-6.

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19

Parkes, E. A., J. B. Polya, and T. M. Spotswood. "Amides X: The use of tertiary amides in the perkin reaction." Recueil des Travaux Chimiques des Pays-Bas 71, no. 7 (2010): 684–88. http://dx.doi.org/10.1002/recl.19520710709.

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20

Pino Tarragó, Julio Cesar, Leider Inocencio Saraiba Núñez, Maira Rosario Moreno Pino, and Yorley Arbella Feliciano. "The risk-based operational safety strategy for Perkin-Elmer/Cetus DNA Thermal Cycler PCR systems." Salud, Ciencia y Tecnología 4 (April 14, 2024): 789. http://dx.doi.org/10.56294/saludcyt2024789.

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Introduction: this article was conducted in the field of polymerase chain reaction (PCR) test safety, where it is essential to understand the contribution and impact of risk analysis methods to improve test safety medical diagnosis at the institutional level. In this context, the current study focuses on failure modes and effects analysis (FMEA) applied to the Perkin-Elmer/Cetus deoxyribonucleic acid (DNA) thermocycler.Objective: the objective of this study is to provide practitioners with a comprehensive overview of the application of FMEA to improve the operational safety of Perkin-Elmer/Cet

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21

Abramovitch, Rudolph A., Joseph M. Beckert, and William T. Pennington. "Perkin communications. 4-(1,2,4-Triazolyl) cation: possible generation and reactions." Journal of the Chemical Society, Perkin Transactions 1, no. 7 (1991): 1761. http://dx.doi.org/10.1039/p19910001761.

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22

WINTERBOURN, Christine C., Helena N. PARSONS-MAIR, Silvia GEBICKI, Janusz M. GEBICKI, and Michael J. DAVIES. "Requirements for superoxide-dependent tyrosine hydroperoxide formation in peptides." Biochemical Journal 381, no. 1 (2004): 241–48. http://dx.doi.org/10.1042/bj20040259.

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Superoxide reacts rapidly with other radicals, but these reactions have received little attention in the context of oxidative stress. For tyrosyl radicals, reaction with superoxide is 3-fold faster than dimerization, and forms the addition product tyrosine hydroperoxide. We have explored structural requirements for hydroperoxide formation using tyrosine analogues and di- and tri-peptides. Superoxide and phenoxyl radicals were generated using xanthine oxidase, peroxidase and the respective tyrosine derivative, or by γ-radiation. Peroxides were measured using FeSO4/Xylenol Orange. Tyrosine and t

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23

Gouda, Moustafa A., Mohammed A. Salem, and Mohamed H. Helal. "A Review on Synthesis and Pharmacological Activity of Coumarins and Their Analogs." Current Bioactive Compounds 16, no. 6 (2020): 818–36. http://dx.doi.org/10.2174/1573407215666190405154406.

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Background: Coumarins were reported to possess antimicrobial, antiinflammatory, antiplasmodial, antimalarial, and enzyme inhibitory properties. Furthermore, coumarins are a type of vitamin K antagonists. Coumarins had been first organized through perkin reaction; besides Knoevenagel condensation was mentioned as a critical synthetic approach for the synthesis of 3-substituted coumarins. Moreover, Pechmann, Reformatasky and Witting reactions were stated for the preparation of coumarins. Methods: We undertook a structured search of the method of preparation, the chemical reactivity and biologica

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24

Marriott, Karla-Sue C., Rena Bartee, Andrew Z. Morrison, Leonard Stewart, and Julian Wesby. "Expedited synthesis of benzofuran-2-carboxylic acids via microwave-assisted Perkin rearrangement reaction." Tetrahedron Letters 53, no. 26 (2012): 3319–21. http://dx.doi.org/10.1016/j.tetlet.2012.04.075.

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25

Nagaretnam, Prahadeesh, and Sithambaresan Maheswaran. "Synthesis of Simple Coumarins: Mixed Solvent Recrystallization Approach and Modification." RESEARCH REVIEW International Journal of Multidisciplinary 4, no. 1 (2019): 455–61. https://doi.org/10.5281/zenodo.2548800.

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Coumarin compounds have great interest for their wide range of medicinal and pharmacological properties as well as for their fluorescent properties. Simple coumarins are being the major precursor for the synthesis of most of the coumarin derivatives. Simple coumarin (C1) was synthesized by using Perkin condensation reaction whereas 7-hydroxy coumarin (C2) and 7-hydroxy-4-methyl coumarin (C3) were synthesized by using Pechmann condensation reaction. Solvent combination which gives higher recovery percentage on recrystallization was found out. The synthesized simple coumarins were characterized

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26

Bowden, Keith, and Sinan Battah. "Reactions of carbonyl compounds in basic solutions. Part 32.1 The Perkin rearrangement." Journal of the Chemical Society, Perkin Transactions 2, no. 7 (1998): 1603–6. http://dx.doi.org/10.1039/a801538d.

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27

Yamaguchi, Takao. "Enamel Proteins Suppress Inflammatory Reaction." Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 51, no. 1 (2009): 38–50. http://dx.doi.org/10.2329/perio.51.038.

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28

Xu, Yu-Xing, Wei-Ji Hu, and Guo-Liang Zhao. "Crystal structure of methyl (E)-4-[2-(8-hydroxyquinolin-2-yl)vinyl]benzoate." Acta Crystallographica Section E Crystallographic Communications 72, no. 9 (2016): 1251–53. http://dx.doi.org/10.1107/s205698901601210x.

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The title compound, C19H15NO3, was synthesized by a Perkin reaction of 2-methyl-8-hydroxyquinoline and 4-formyl-2-methylbenzoate in acetic anhydride under a nitrogen atmosphere. The molecule has anEconformation about the C=C bond, and the quinoline ring system and the benzene ring are inclined to one another by 29.22 (7)°. There is an intramolecular O—H...N hydrogen bond in the 8-hydroxyquinoline moiety. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers with anR22(28) ring motif. The dimers are linked by C—H...O hydrogen bonds and C—H...π interac

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29

Nagano, Hajime, Yuko Seko, and Kyoko Nakai. "Perkin communications. A new synthetic route to (±)-magydardienediol via a radical cyclisation-trapping reaction." J. Chem. Soc., Perkin Trans. 1, no. 7 (1990): 2153–54. http://dx.doi.org/10.1039/p19900002153.

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30

Molnar, Maja, Melita Lončarić, and Marija Kovač. "Green Chemistry Approaches to the Synthesis of Coumarin Derivatives." Current Organic Chemistry 24, no. 1 (2020): 4–43. http://dx.doi.org/10.2174/1385272824666200120144305.

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This review is a compilation of the green synthetic methods used in the synthesis of coumarin derivatives. Coumarins are a class of compounds with a pronounced wide range of biological activities, which have found their application in medicine, pharmacology, cosmetics and food industry. Their biological activity and potential application are highly dependent on their structure. Therefore, many researchers have been performing the synthesis of coumarin derivatives on a daily basis. High demands for their synthesis often result in an increased generation of different waste chemicals. In order to

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Mohd Daud, Farah Diana, Srimala Sreekantan, and Abdul Rahman Mohamed. "Fabrication of Ca(OH)₂ Nanostructures by Facile Solution – Based Synthesis at Various Reaction Temperatures as CO₂Adsorbent." Materials Science Forum 756 (May 2013): 175–81. http://dx.doi.org/10.4028/www.scientific.net/msf.756.175.

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Calcium hydroxides (Ca(OH)2) nanostructures have been fabricated through simple facile solution based synthesis at different temperatures 35,45 and 55°C repectively.Ethanol was utilized as a medium for reaction. The synthesized powder was characterized by Field Emission Scanning Electron Microscope (FESEM SUPRA 35VP ZEISS), Fourier transform infrared (FTIR Perkin Elmer Spectrum One Spectrophotometer) and X-raydiffraction (XRD). Based on XRD analysis, the synthesis samples exhibited crystal hexagonal phase of Ca(OH)2.The crystallite size for powders prepared was between 17 nm to 31 nm. Short na

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Lunt, E. A. M., M. C. Pitter, M. G. Somekh, and P. O'Shea. "Studying Protein Binding to Conjugated Gold Nanospheres; Application of Mie Light Scattering to Reaction Kinetics." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4335–40. http://dx.doi.org/10.1166/jnn.2008.289.

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The study of protein interactions is an area of much interest, particularly towards obtaining more detailed information about biological processes. Current methods involve the use of complicated, specialised techniques which are beyond the scope of most laboratories. Here, we show how information about the binding of proteins to conjugated gold nanospheres can be obtained using straightforward experimental techniques. A Perkin Elmer LS 55 luminescence spectrometer was used to observe the changes in light scattering caused by the binding of complementary proteins to conjugated nanoparticles, me

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Anita, Gour*1 Shirin Imam2 &. Niharika Shivhare3. "ANALYSIS AND PREPARATION OF AZO DISPERSE DYE C33H36N6O5." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 12 (2017): 543–46. https://doi.org/10.5281/zenodo.1130869.

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Dyes are chemical compounds that can attach themselves to fabrics or surfaces to give them colour. Most dyes are complex organic molecules and need to be resistant to weather and the action of detergents. Dyes add color to textiles. They are incorporated into the fibre by chemical reaction, absorption or dispersion. Dyes differ in their resistance to sunlight, perspiration, washing, gas, alkalies, and other agents; their affinity for different fibres; their reaction to cleaning agents and methods and their solubility and method of application. In short, dyes are coloured, ionising, aromatic or

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34

Tureček, František. "Are There Two Different Geometric Isomers of the O=C=N=C=O Cation?" Collection of Czechoslovak Chemical Communications 66, no. 7 (2001): 1038–46. http://dx.doi.org/10.1135/cccc20011038.

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Re-examination of the O=C=N=C=O+ cation reported previously by Eberlin et al. (J. Chem. Soc., Perkin Trans. 2 1997, 2347) yielded a single local minimum for the C2v bent structure (1a). The D∞h linear structure (1b) reported previously as a local minimum was found to be a second-order stationary point that, upon slight geometry perturbation, collapsed to a C2v transition state (1c) for degenerate inversion of the N-C-N angle in 1a. The ion enthalpy of formation was obtained from the enthalpies of three reactions as ∆Hf,298(1a) = 718 ± 6 kJ mol-1.

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35

BOWDEN, K., and S. BATTAH. "ChemInform Abstract: Reactions of Carbonyl Compounds in Basic Solutions. Part 32. The Perkin Rearrangement." ChemInform 29, no. 46 (2010): no. http://dx.doi.org/10.1002/chin.199846055.

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36

Shard, Amit, Rajesh Kumar, Danish Equbal, and Arun Kumar Sinha. "Pot-Economical Synthesis of Hydroxylated Arylethenyl-arylethynyl-arenes through Sequential Decarboxylative Perkin-Sonogashira Reactions." Asian Journal of Organic Chemistry 7, no. 1 (2017): 189–96. http://dx.doi.org/10.1002/ajoc.201700504.

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37

Usova, Sofia D., Ekaterina A. Knyazeva, and Oleg A. Rakitin. "1-(Dicyanomethylene)-3-hydroxy-1H-indene-2-carboxylic Acid." Molbank 2024, no. 3 (2024): M1871. http://dx.doi.org/10.3390/m1871.

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Bulk heterojunction solar cells are among the most promising organic solar cells (OSCs). One of the two important parts of OSCs are acceptors, and the development of the design and synthesis of non-fullerene acceptors involves an electron-deficient heterocyclic central core and anchor acceptor malonitrile derivatives of 3-methylene-2,3-dihydro-1H-inden-1-ones. In this communication, an intermediate for the synthesis of this compound, 1-(dicyanomethylene)-3-hydroxy-1H-indene-2-carboxylic acid, was prepared by the Perkin reaction of 2-(3-oxoisobenzofuran-1(3H)-ylidene)malononitrile with tert-but

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Pawar, Poonam Mahadev, Krishna Jagannath Jarag, and Ganapati Subray Shankarling. "Environmentally benign and energy efficient methodology for condensation: an interesting facet to the classical Perkin reaction." Green Chemistry 13, no. 8 (2011): 2130. http://dx.doi.org/10.1039/c0gc00712a.

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Crotti, Stefano, Francesco Berti, and Mauro Pineschi. "Copper-Catalyzed Perkin–Acyl-Mannich Reaction of Acetic Anhydride with Pyridine: Expeditious Entry to Unconventional Piperidines." Organic Letters 13, no. 19 (2011): 5152–55. http://dx.doi.org/10.1021/ol202027k.

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Oshiro, Robin K., Teresa Picone, and Betty H. Olson. "Modification of reagents in the EnviroAmp™ kit to increase recovery of Legionella organisms in water." Canadian Journal of Microbiology 40, no. 6 (1994): 495–99. http://dx.doi.org/10.1139/m94-080.

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Organisms of the bacterial genus Legionella, commonly found in aqueous reservoirs, have been associated with Legionnaires' disease (legionella pneumonia, caused by Legionella pneumophila) and Pontiac fever (nonpneumonic legionellosis). EnviroAmp™ Legionella sample preparation, polymerase chain reaction amplification, and detection kits (Perkin-Elmer Corp.) were developed for rapid detection of DNA from organisms of the genus Legionella and the species L. pneumophila from environmental water samples. The kits are based on molecular techniques incorporating polymerase chain reaction amplificatio

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Francisco, Carla S., Cristina S. Francisco, André F. Constantino, Álvaro Cunha Neto, and Valdemar Lacerda. "Synthetic Methods Applied in the Preparation of Coumarin-based Compounds." Current Organic Chemistry 23, no. 24 (2020): 2722–50. http://dx.doi.org/10.2174/1385272823666191121150047.

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Coumarins (2H-chromen-2-ones) are heterocyclic compounds of wide scientific interest due to their important biological and pharmaceutical properties such as antitumor, antioxidant, anti-inflammatory and antimicrobial activities as well as enzymatic inhibitors related to neurodegenerative diseases. Due to their structural variability, this compound class has been attracting considerable interest in the natural products and synthetic organic chemistry areas. Coumarins and their derivatives have been prepared by a variety of methods, including Perkin, Wittig and Reformatsky reactions, Pechmann an

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ZAPOROZHETS, Oleksandr, Yuliia DAVYDENKO, Vadim PAVLENKO, and Igor FRITSKY. "NOVEL PROTOCOL OF PREPARATION OF SOLUBLE TANTALUM FLUORIDE COMPLEX." Bulletin of Taras Shevchenko National University of Kyiv. Chemistry, no. 1 (59) (2024): 71–75. https://doi.org/10.17721/1728-2209.2024.1(59).12.

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Background. The research aimed to find a convenient preparative method for the synthesis of tantalum water-soluble complexes from metal oxide, which would not require harsh or hazardous reaction conditions or the use of expensive, less accessible reagents. The application of the triethylamine-hydrogen fluoride complex as an inexpensive and safe surrogate for hydrofluoric acid facilitated the conversion of tantalum oxide into a form suitable for further transformations in aqueous or organic environments under mild conditions and without any restrictions on the use of glassware. Methods. In this

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43

Indriyanti, Erwin, and Masitoh Suryaning Prahasiwi. "Synthesis of Cinnamic Acid Based on Perkin Reaction Using Sonochemical Method and Its Potential as Photoprotective Agent." JKPK (Jurnal Kimia dan Pendidikan Kimia) 5, no. 1 (2020): 54. http://dx.doi.org/10.20961/jkpk.v5i1.38136.

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<p>Cinnamic acid plays a vital role in the synthesis of other important compounds and as a precursor for the synthesis of commercial cinnamon esters used in perfumery, cosmetics, and pharmaceutical industries. The aim of this research is to synthesize cinnamic acid using sonochemical methods. Cinnamic acid was synthesized using Perkin reaction by reacting 0.05 mole of benzaldehyde with 0.073 mole of acetic acid anhydride and 0.03 mole of sodium acetate as a catalyst in the Erlenmeyer flask and then the mixture was put in a sonicator for 60 minutes at 70 <sup>o</sup>C. The syn

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Luo, Yinggang, Feiyan Tao, Yan Liu, Bogang Li, and Guolin Zhang. "Intramolecular amidation — An efficient synthesis of 3-aryl-2-quinolinones." Canadian Journal of Chemistry 84, no. 12 (2006): 1620–25. http://dx.doi.org/10.1139/v06-163.

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To reveal the scope of the syntheses of 3-aryl-2-quinolinones from 2-nitro-α-phenylcinnamic acids, the isomerization of (E)-2-amino-α-phenylcinnamic acids was studied. The results showed that (E)-2-amino-α-phenylcinnamic acids were isomerized to its (Z)-forms under sunlight in organic solvents. The reaction temperature and the functional groups at both phenyl rings have no effect on the isomerization of (E)-2-amino-α-phenylcinnamic acids and the following intramolecular spontaneous amidation of (Z)-2-amino-α-phenylcinnamic acids. Various 3-aryl-2-quinolinones prepared in high total yields indi

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45

Butenschön, Holger. "Perkin communications. 5-Substituted bicyclo[3.2.0]hept-2-en-6-ones: synthesis and ring-opening reactions." J. Chem. Soc., Perkin Trans. 1, no. 2 (1991): 483–84. http://dx.doi.org/10.1039/p19910000483.

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FUJIMOTO, Naoki. "Autologous mixed lymphocyte reaction of peripheral blood lymphocytes in adult periodontitis." Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 32, no. 2 (1990): 355–69. http://dx.doi.org/10.2329/perio.32.355.

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Jain, Aakash Kumar, Sushma Yadav, Meenal Mehra, Sameer Sapra, and Madhusudan Singh. "Solution-Processed Cubic GaN for Potential Lighting Applications." MRS Advances 4, no. 09 (2019): 567–74. http://dx.doi.org/10.1557/adv.2019.105.

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ABSTRACT:Cubic gallium nitride (GaN) is a wide bandgap semiconductor that exhibits a high crystallographic symmetry resulting in a lower inbuilt polarization which is useful for more efficient phosphor-free green light-emitting diodes. It has been grown using molecular beam epitaxy (MBE) and metal-organic chemical vapor deposition (MOCVD), which produce highly ordered thin films on compatible substrates. In this work, we report the chemical synthesis of GaN using chemical metathesis reaction in diethyl ether with lithium nitride and anhydrous gallium chloride as precursors, inside a nitrogen g

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Pawar, Poonam Mahadev, Krishna Jagannath Jarag, and Ganapati Subray Shankarling. "ChemInform Abstract: Environmentally Benign and Energy Efficient Methodology for Condensation: An Interesting Facet to the Classical Perkin Reaction." ChemInform 42, no. 52 (2011): no. http://dx.doi.org/10.1002/chin.201152065.

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Deo, Sujata, Tanishq Chaudhari та Farhin Inam. "ChemInform Abstract: Microwave Assisted Perkin Reaction for the Synthesis of α-Arylidine-γ-phenyl-Δ,β,γ-butenolides." ChemInform 45, № 37 (2014): no. http://dx.doi.org/10.1002/chin.201437116.

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Nycz, Jacek E., Natalia Martsinovich, Jakub Wantulok, Tieqiao Chen, Maria Książek, and Joachim Kusz. "Synthesis and Spectroscopic Characterization of Selected Water-Soluble Ligands Based on 1,10-Phenanthroline Core." Molecules 29, no. 6 (2024): 1341. http://dx.doi.org/10.3390/molecules29061341.

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Water-soluble ligands based on a 1,10-phenanthroline core are relatively poorly studied compounds. Developing efficient and convenient syntheses of them would result in new interesting applications because of the importance of 1,10-phenanthrolines. In this manuscript, we describe novel and practical ways to introduce a carboxyl and, for the first time, a phenol and dithiocarboxyl group under mild reaction conditions. This strategy enables highly efficient and practical synthesis of suitable organosulfur compounds with high added value, high chemoselectivity, and a broad substrate range. We pre

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